diff --git a/android/src/main/assets/custom_tiles/sewer_boss.png b/android/src/main/assets/custom_tiles/sewer_boss.png
new file mode 100644
index 000000000..477e933a6
Binary files /dev/null and b/android/src/main/assets/custom_tiles/sewer_boss.png differ
diff --git a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/Assets.java b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/Assets.java
index 9d73f2a74..ce75a3664 100644
--- a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/Assets.java
+++ b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/Assets.java
@@ -122,6 +122,7 @@ public class Assets {
 	public static final String LOADING_HALLS	= "loading_halls.png";
 
 	public static final String WEAK_FLOOR   = "custom_tiles/weak_floor.png";
+	public static final String SEWER_BOSS  = "custom_tiles/sewer_boss.png";
 	public static final String PRISON_QUEST = "custom_tiles/prison_quests.png";
 	public static final String PRISON_EXIT  = "custom_tiles/prison_exit.png";
 	
diff --git a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/ShatteredPixelDungeon.java b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/ShatteredPixelDungeon.java
index 7e232d1db..abbcf305e 100644
--- a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/ShatteredPixelDungeon.java
+++ b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/ShatteredPixelDungeon.java
@@ -97,6 +97,11 @@ public class ShatteredPixelDungeon extends Game {
 		com.watabou.utils.Bundle.addAlias(
 				com.shatteredpixel.shatteredpixeldungeon.items.weapon.enchantments.Kinetic.class,
 				"com.shatteredpixel.shatteredpixeldungeon.items.weapon.enchantments.Swift" );
+		
+		//v0.7.5
+		com.watabou.utils.Bundle.addAlias(
+				com.shatteredpixel.shatteredpixeldungeon.levels.rooms.sewerboss.SewerBossEntranceRoom.class,
+				"com.shatteredpixel.shatteredpixeldungeon.levels.rooms.standard.SewerBossEntranceRoom" );
 	}
 	
 	@Override
diff --git a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/SewerBossLevel.java b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/SewerBossLevel.java
index 6888dee62..f076e6306 100644
--- a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/SewerBossLevel.java
+++ b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/SewerBossLevel.java
@@ -30,8 +30,8 @@ import com.shatteredpixel.shatteredpixeldungeon.levels.builders.Builder;
 import com.shatteredpixel.shatteredpixeldungeon.levels.builders.LoopBuilder;
 import com.shatteredpixel.shatteredpixeldungeon.levels.rooms.Room;
 import com.shatteredpixel.shatteredpixeldungeon.levels.rooms.secret.RatKingRoom;
-import com.shatteredpixel.shatteredpixeldungeon.levels.rooms.standard.EmptyRoom;
-import com.shatteredpixel.shatteredpixeldungeon.levels.rooms.standard.SewerBossEntranceRoom;
+import com.shatteredpixel.shatteredpixeldungeon.levels.rooms.sewerboss.GooBossRoom;
+import com.shatteredpixel.shatteredpixeldungeon.levels.rooms.sewerboss.SewerBossEntranceRoom;
 import com.shatteredpixel.shatteredpixeldungeon.levels.rooms.standard.StandardRoom;
 import com.shatteredpixel.shatteredpixeldungeon.scenes.GameScene;
 import com.watabou.utils.Bundle;
@@ -55,17 +55,18 @@ public class SewerBossLevel extends SewerLevel {
 		
 		int standards = standardRooms();
 		for (int i = 0; i < standards; i++) {
-			initRooms.add(new EmptyRoom());
+			initRooms.add(StandardRoom.createRoom());
 		}
 		
+		initRooms.add(GooBossRoom.randomGooRoom());
 		initRooms.add(new RatKingRoom());
 		return initRooms;
 	}
 	
 	@Override
 	protected int standardRooms() {
-		//2 to 4, average 3
-		return 2+Random.chances(new float[]{1, 1, 1});
+		//2 to 3, average 2.5
+		return 2+Random.chances(new float[]{1, 1});
 	}
 	
 	protected Builder builder(){
@@ -100,13 +101,6 @@ public class SewerBossLevel extends SewerLevel {
 
 	@Override
 	protected void createMobs() {
-		Goo boss = new Goo();
-		Room room;
-		do {
-			room = randomRoom(StandardRoom.class);
-		} while (room == roomEntrance);
-		boss.pos = pointToCell(room.random());
-		mobs.add( boss );
 	}
 	
 	public Actor respawner() {
diff --git a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/Room.java b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/Room.java
index 5cc36ed6c..8c2cb1bd0 100644
--- a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/Room.java
+++ b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/Room.java
@@ -156,8 +156,10 @@ public abstract class Room extends Rect implements Graph.Node, Bundlable {
 	public static final int RIGHT   = 3;
 	public static final int BOTTOM  = 4;
 	
-	//TODO make abstract
-	public int minConnections(int direction){ return -1; }
+	public int minConnections(int direction){
+		if (direction == ALL)   return 1;
+		else                    return 0;
+	}
 	
 	public int curConnections(int direction){
 		if (direction == ALL) {
@@ -181,8 +183,10 @@ public abstract class Room extends Rect implements Graph.Node, Bundlable {
 		else return maxConnections(direction) - curConnections(direction);
 	}
 	
-	//TODO make abstract
-	public int maxConnections(int direction){ return -1; }
+	public int maxConnections(int direction){
+		if (direction == ALL)   return 16;
+		else                    return 4;
+	}
 	
 	//only considers point-specific limits, not direction limits
 	public boolean canConnect(Point p){
@@ -257,8 +261,7 @@ public abstract class Room extends Rect implements Graph.Node, Bundlable {
 	
 	// **** Painter Logic ****
 	
-	//TODO make abstract
-	public void paint(Level level){}
+	public abstract void paint(Level level);
 	
 	//whether or not a painter can make its own modifications to a specific point
 	public boolean canPlaceWater(Point p){
diff --git a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/connection/ConnectionRoom.java b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/connection/ConnectionRoom.java
index a1593b1e9..fcb0b5068 100644
--- a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/connection/ConnectionRoom.java
+++ b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/connection/ConnectionRoom.java
@@ -45,12 +45,6 @@ public abstract class ConnectionRoom extends Room {
 		else                    return 0;
 	}
 	
-	@Override
-	public int maxConnections(int direction) {
-		if (direction == ALL)   return 16;
-		else                    return 4;
-	}
-	
 	@Override
 	public boolean canPlaceTrap(Point p) {
 		//traps cannot appear in connection rooms on floor 1
@@ -74,7 +68,7 @@ public abstract class ConnectionRoom extends Room {
 	static {
 		chances[1] =  new float[]{20, 1,    0, 2,       2, 1};
 		chances[4] =  chances[3] = chances[2] = chances[1];
-		chances[5] =  new float[]{18, 0,    0, 0,       7, 0};
+		chances[5] =  new float[]{20, 0,    0, 0,       0, 0};
 		
 		chances[6] =  new float[]{0, 0,     22, 3,      0, 0};
 		chances[10] = chances[9] = chances[8] = chances[7] = chances[6];
diff --git a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/connection/MazeConnectionRoom.java b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/connection/MazeConnectionRoom.java
index aa8293faa..87240361f 100644
--- a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/connection/MazeConnectionRoom.java
+++ b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/connection/MazeConnectionRoom.java
@@ -30,8 +30,6 @@ public class MazeConnectionRoom extends ConnectionRoom {
 	
 	@Override
 	public void paint(Level level) {
-		super.paint(level);
-		
 		Painter.fill(level, this, 1, Terrain.EMPTY);
 		
 		//true = space, false = wall
diff --git a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/connection/PerimeterRoom.java b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/connection/PerimeterRoom.java
index a5f03199a..44d6c5aee 100644
--- a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/connection/PerimeterRoom.java
+++ b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/connection/PerimeterRoom.java
@@ -23,6 +23,7 @@ package com.shatteredpixel.shatteredpixeldungeon.levels.rooms.connection;
 
 import com.shatteredpixel.shatteredpixeldungeon.levels.Level;
 import com.shatteredpixel.shatteredpixeldungeon.levels.painters.Painter;
+import com.shatteredpixel.shatteredpixeldungeon.levels.rooms.Room;
 import com.watabou.utils.Point;
 
 import java.util.ArrayList;
@@ -34,14 +35,25 @@ public class PerimeterRoom extends ConnectionRoom {
 		
 		int floor = level.tunnelTile();
 		
+		fillPerimiterPaths(level, this, floor);
+		
+		for (Door door : connected.values()) {
+			door.set( Door.Type.TUNNEL );
+		}
+	}
+	
+	public static void fillPerimiterPaths( Level l, Room r, int floor ){
+		
+		corners = null;
+		
 		ArrayList<Point> pointsToFill = new ArrayList<>();
-		for (Point door : connected.values()) {
+		for (Point door : r.connected.values()) {
 			Point p = new Point(door);
-			if (p.y == top){
+			if (p.y == r.top){
 				p.y++;
-			} else if (p.y == bottom) {
+			} else if (p.y == r.bottom) {
 				p.y--;
-			} else if (p.x == left){
+			} else if (p.x == r.left){
 				p.x++;
 			} else {
 				p.x--;
@@ -58,7 +70,7 @@ public class PerimeterRoom extends ConnectionRoom {
 			shortestDistance = Integer.MAX_VALUE;
 			for (Point f : pointsFilled){
 				for (Point t : pointsToFill){
-					int dist = distanceBetweenPoints(f, t);
+					int dist = distanceBetweenPoints(r, f, t);
 					if (dist < shortestDistance){
 						from = f;
 						to = t;
@@ -66,46 +78,45 @@ public class PerimeterRoom extends ConnectionRoom {
 					}
 				}
 			}
-			fillBetweenPoints(level, from, to, floor);
+			fillBetweenPoints(l, r, from, to, floor);
 			pointsFilled.add(to);
 			pointsToFill.remove(to);
 		}
 		
-		for (Door door : connected.values()) {
-			door.set( Door.Type.TUNNEL );
-		}
 	}
 	
-	private int spaceBetween(int a, int b){
+	private static int spaceBetween(int a, int b){
 		return Math.abs(a - b)-1;
 	}
 	
 	//gets the path distance between two points
-	private int distanceBetweenPoints(Point a, Point b){
+	private static int distanceBetweenPoints(Room r, Point a, Point b){
 		//on the same side
-		if (a.y == b.y || a.x == b.x){
+		if (((a.x == r.left || a.x == r.right) && a.y == b.y)
+				|| ((a.y == r.top || a.y == r.bottom) && a.x == b.x)){
 			return Math.max(spaceBetween(a.x, b.x), spaceBetween(a.y, b.y));
 		}
 		
 		//otherwise...
 		//subtract 1 at the end to account for overlap
 		return
-				Math.min(spaceBetween(left, a.x) + spaceBetween(left, b.x),
-				spaceBetween(right, a.x) + spaceBetween(right, b.x))
+				Math.min(spaceBetween(r.left, a.x) + spaceBetween(r.left, b.x),
+				spaceBetween(r.right, a.x) + spaceBetween(r.right, b.x))
 				+
-				Math.min(spaceBetween(top, a.y) + spaceBetween(top, b.y),
-				spaceBetween(bottom, a.y) + spaceBetween(bottom, b.y))
+				Math.min(spaceBetween(r.top, a.y) + spaceBetween(r.top, b.y),
+				spaceBetween(r.bottom, a.y) + spaceBetween(r.bottom, b.y))
 				-
 				1;
 	}
 	
-	private Point[] corners;
+	private static Point[] corners;
 	
 	//picks the smallest path to fill between two points
-	private void fillBetweenPoints(Level level, Point from, Point to, int floor){
+	private static void fillBetweenPoints(Level level, Room r, Point from, Point to, int floor){
 		
 		//doors are along the same side
-		if (from.y == to.y || from.x == to.x){
+		if (((from.x == r.left || from.x == r.right) && from.y == to.y)
+				|| ((from.y == r.top || from.y == r.bottom) && from.x == to.x)){
 			Painter.fill(level,
 					Math.min(from.x, to.x),
 					Math.min(from.y, to.y),
@@ -118,10 +129,10 @@ public class PerimeterRoom extends ConnectionRoom {
 		//set up corners
 		if (corners == null){
 			corners = new Point[4];
-			corners[0] = new Point(left+1, top+1);
-			corners[1] = new Point(right-1, top+1);
-			corners[2] = new Point(right-1, bottom-1);
-			corners[3] = new Point(left+1, bottom-1);
+			corners[0] = new Point(r.left+1, r.top+1);
+			corners[1] = new Point(r.right-1, r.top+1);
+			corners[2] = new Point(r.right-1, r.bottom-1);
+			corners[3] = new Point(r.left+1, r.bottom-1);
 		}
 		
 		//doors on adjacent sides
@@ -135,26 +146,26 @@ public class PerimeterRoom extends ConnectionRoom {
 		
 		//doors on opposite sides
 		Point side;
-		if (from.y == top+1 || from.y == bottom-1){
+		if (from.y == r.top+1 || from.y == r.bottom-1){
 			//connect along the left, or right side
-			if (spaceBetween(left, from.x) + spaceBetween(left, to.x) <=
-				spaceBetween(right, from.x) + spaceBetween(right, to.x)){
-				side = new Point(left+1, top + height()/2);
+			if (spaceBetween(r.left, from.x) + spaceBetween(r.left, to.x) <=
+				spaceBetween(r.right, from.x) + spaceBetween(r.right, to.x)){
+				side = new Point(r.left+1, r.top + r.height()/2);
 			} else {
-				side = new Point(right-1, top + height()/2);
+				side = new Point(r.right-1, r.top + r.height()/2);
 			}
 		
 		} else {
 			//connect along the top, or bottom side
-			if (spaceBetween(top, from.y) + spaceBetween(top, to.y) <=
-				spaceBetween(bottom, from.y) + spaceBetween(bottom, to.y)){
-				side = new Point(left + width()/2, top+1);
+			if (spaceBetween(r.top, from.y) + spaceBetween(r.top, to.y) <=
+				spaceBetween(r.bottom, from.y) + spaceBetween(r.bottom, to.y)){
+				side = new Point(r.left + r.width()/2, r.top+1);
 			} else {
-				side = new Point(left + width()/2, bottom-1);
+				side = new Point(r.left + r.width()/2, r.bottom-1);
 			}
 		}
 		//treat this as two connections with adjacent sides
-		fillBetweenPoints(level, from, side, floor);
-		fillBetweenPoints(level, side, to, floor);
+		fillBetweenPoints(level, r, from, side, floor);
+		fillBetweenPoints(level, r, side, to, floor);
 	}
 }
diff --git a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/secret/RatKingRoom.java b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/secret/RatKingRoom.java
index 104250834..62064df0c 100644
--- a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/secret/RatKingRoom.java
+++ b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/secret/RatKingRoom.java
@@ -29,7 +29,7 @@ import com.shatteredpixel.shatteredpixeldungeon.levels.Level;
 import com.shatteredpixel.shatteredpixeldungeon.levels.Terrain;
 import com.shatteredpixel.shatteredpixeldungeon.levels.painters.Painter;
 import com.shatteredpixel.shatteredpixeldungeon.levels.rooms.Room;
-import com.shatteredpixel.shatteredpixeldungeon.levels.rooms.standard.SewerBossEntranceRoom;
+import com.shatteredpixel.shatteredpixeldungeon.levels.rooms.sewerboss.SewerBossEntranceRoom;
 import com.watabou.utils.Random;
 
 public class RatKingRoom extends SecretRoom {
diff --git a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/secret/SecretArtilleryRoom.java b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/secret/SecretArtilleryRoom.java
index 89c33a8e0..ed18f09ec 100644
--- a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/secret/SecretArtilleryRoom.java
+++ b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/secret/SecretArtilleryRoom.java
@@ -31,8 +31,6 @@ public class SecretArtilleryRoom extends SecretRoom {
 	
 	@Override
 	public void paint(Level level) {
-		super.paint(level);
-		
 		Painter.fill(level, this, Terrain.WALL);
 		Painter.fill(level, this, 1, Terrain.EMPTY_SP);
 		
diff --git a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/secret/SecretChestChasmRoom.java b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/secret/SecretChestChasmRoom.java
index 0e5698f1f..7f87bb807 100644
--- a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/secret/SecretChestChasmRoom.java
+++ b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/secret/SecretChestChasmRoom.java
@@ -57,8 +57,6 @@ public class SecretChestChasmRoom extends SecretRoom {
 	
 	@Override
 	public void paint(Level level) {
-		super.paint(level);
-		
 		Painter.fill(level, this, Terrain.WALL);
 		Painter.fill(level, this, 1, Terrain.CHASM);
 		
diff --git a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/secret/SecretHoardRoom.java b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/secret/SecretHoardRoom.java
index 451f00b9a..af1c59812 100644
--- a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/secret/SecretHoardRoom.java
+++ b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/secret/SecretHoardRoom.java
@@ -39,8 +39,6 @@ public class SecretHoardRoom extends SecretRoom {
 	
 	@Override
 	public void paint(Level level) {
-		super.paint(level);
-		
 		Painter.fill(level, this, Terrain.WALL);
 		Painter.fill(level, this, 1, Terrain.EMPTY);
 		
diff --git a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/secret/SecretMazeRoom.java b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/secret/SecretMazeRoom.java
index 72bbb649b..73d2751e9 100644
--- a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/secret/SecretMazeRoom.java
+++ b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/secret/SecretMazeRoom.java
@@ -58,8 +58,6 @@ public class SecretMazeRoom extends SecretRoom {
 	
 	@Override
 	public void paint(Level level) {
-		super.paint(level);
-		
 		Painter.fill(level, this, Terrain.WALL);
 		Painter.fill(level, this, 1, Terrain.EMPTY);
 		
diff --git a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/secret/SecretSummoningRoom.java b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/secret/SecretSummoningRoom.java
index eeee57cfa..62ac30446 100644
--- a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/secret/SecretSummoningRoom.java
+++ b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/secret/SecretSummoningRoom.java
@@ -45,8 +45,6 @@ public class SecretSummoningRoom extends SecretRoom {
 	
 	@Override
 	public void paint(Level level) {
-		super.paint(level);
-		
 		Painter.fill(level, this, Terrain.WALL);
 		Painter.fill(level, this, 1, Terrain.SECRET_TRAP);
 		
diff --git a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/sewerboss/DiamondGooRoom.java b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/sewerboss/DiamondGooRoom.java
new file mode 100644
index 000000000..5be1181c3
--- /dev/null
+++ b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/sewerboss/DiamondGooRoom.java
@@ -0,0 +1,78 @@
+/*
+ * Pixel Dungeon
+ * Copyright (C) 2012-2015 Oleg Dolya
+ *
+ * Shattered Pixel Dungeon
+ * Copyright (C) 2014-2019 Evan Debenham
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ */
+
+package com.shatteredpixel.shatteredpixeldungeon.levels.rooms.sewerboss;
+
+import com.shatteredpixel.shatteredpixeldungeon.actors.mobs.Goo;
+import com.shatteredpixel.shatteredpixeldungeon.levels.Level;
+import com.shatteredpixel.shatteredpixeldungeon.levels.Terrain;
+import com.shatteredpixel.shatteredpixeldungeon.levels.painters.Painter;
+import com.watabou.utils.Point;
+
+public class DiamondGooRoom extends GooBossRoom {
+	
+	@Override
+	public void paint(Level level) {
+		Painter.fill( level, this, Terrain.WALL );
+		
+		int diamondWidth = 2 + width()%2;
+		for (int i = 1; i < height(); i++){
+			Painter.fill( level, left + (width() - diamondWidth)/2, top+i, diamondWidth, height()-2*i, Terrain.EMPTY);
+			diamondWidth += 2;
+			if (diamondWidth >= width()) break;
+		}
+		
+		for (Door door : connected.values()) {
+			door.set( Door.Type.REGULAR );
+			Point dir;
+			if (door.x == left){
+				dir = new Point(1, 0);
+			} else if (door.y == top){
+				dir = new Point(0, 1);
+			} else if (door.x == right){
+				dir = new Point(-1, 0);
+			} else {
+				dir = new Point(0, -1);
+			}
+			
+			Point curr = new Point(door);
+			do {
+				Painter.set(level, curr, Terrain.EMPTY_SP);
+				curr.x += dir.x;
+				curr.y += dir.y;
+			} while (level.map[level.pointToCell(curr)] != Terrain.EMPTY);
+		}
+		
+		Painter.fill( level, left + width()/2 - 1, top + height()/2 - 2, 2 + width()%2, 4 + height()%2, Terrain.WATER);
+		Painter.fill( level, left + width()/2 - 2, top + height()/2 - 1, 4 + width()%2, 2 + height()%2, Terrain.WATER);
+		
+		setupGooNest(level);
+		
+		Goo boss = new Goo();
+		boss.pos = level.pointToCell(center());
+		level.mobs.add( boss );
+	}
+	
+	@Override
+	public boolean canPlaceWater(Point p) {
+		return false;
+	}
+}
diff --git a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/sewerboss/GooBossRoom.java b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/sewerboss/GooBossRoom.java
new file mode 100644
index 000000000..eadcfaba2
--- /dev/null
+++ b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/sewerboss/GooBossRoom.java
@@ -0,0 +1,120 @@
+/*
+ * Pixel Dungeon
+ * Copyright (C) 2012-2015 Oleg Dolya
+ *
+ * Shattered Pixel Dungeon
+ * Copyright (C) 2014-2019 Evan Debenham
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ */
+
+package com.shatteredpixel.shatteredpixeldungeon.levels.rooms.sewerboss;
+
+import com.shatteredpixel.shatteredpixeldungeon.Assets;
+import com.shatteredpixel.shatteredpixeldungeon.levels.Level;
+import com.shatteredpixel.shatteredpixeldungeon.levels.rooms.standard.StandardRoom;
+import com.shatteredpixel.shatteredpixeldungeon.tiles.CustomTilemap;
+import com.watabou.noosa.Image;
+import com.watabou.noosa.Tilemap;
+import com.watabou.utils.Point;
+import com.watabou.utils.Random;
+
+public abstract class GooBossRoom extends StandardRoom {
+	
+	@Override
+	public float[] sizeCatProbs() {
+		return new float[]{0, 1, 0};
+	}
+	
+	public static GooBossRoom randomGooRoom(){
+		switch (Random.Int(4)){
+			case 0: default:
+				return new DiamondGooRoom();
+			case 1:
+				return new WalledGooRoom();
+			case 2:
+				return new ThinPillarsGooRoom();
+			case 3:
+				return new ThickPillarsGooRoom();
+		}
+	}
+	
+	protected void setupGooNest( Level level ){
+		GooNest nest = new GooNest();
+		nest.setRect(left + width()/2 - 2, top + height()/2 - 2, 4 + width()%2, 4 + height()%2);
+		
+		level.customTiles.add(nest);
+	}
+	
+	//TODO no texturing on this atm
+	public static class GooNest extends CustomTilemap {
+		
+		{
+			texture = Assets.SEWER_BOSS;
+		}
+		
+		@Override
+		public Tilemap create() {
+			Tilemap v = super.create();
+			int[] data = new int[tileW*tileH];
+			for (int x = 0; x < tileW; x++){
+				for (int y = 0; y < tileH; y++){
+					
+					//corners
+					if ((x == 0 || x == tileW-1) && (y == 0 || y == tileH-1)){
+						data[x + tileW*y] = -1;
+					
+					//adjacent to corners
+					} else if ((x == 1 && y == 0) || (x == 0 && y == 1)){
+						data[x + tileW*y] = 0;
+						
+					} else if ((x == tileW-2 && y == 0) || (x == tileW-1 && y == 1)){
+						data[x + tileW*y] = 1;
+						
+					} else if ((x == 1 && y == tileH-1) || (x == 0 && y == tileH-2)){
+						data[x + tileW*y] = 2;
+					
+					} else if ((x == tileW-2 && y == tileH-1) || (x == tileW-1 && y == tileH-2)) {
+						data[x + tileW*y] = 3;
+					
+					//sides
+					} else if (x == 0){
+						data[x + tileW*y] = 4;
+					
+					} else if (y == 0){
+						data[x + tileW*y] = 5;
+					
+					} else if (x == tileW-1){
+						data[x + tileW*y] = 6;
+					
+					} else if (y == tileH-1){
+						data[x + tileW*y] = 7;
+					
+					//inside
+					} else {
+						data[x + tileW*y] = 8;
+					}
+					
+				}
+			}
+			v.map( data, tileW );
+			return v;
+		}
+		
+		@Override
+		public Image image(int tileX, int tileY) {
+			return null;
+		}
+	}
+}
diff --git a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/standard/SewerBossEntranceRoom.java b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/sewerboss/SewerBossEntranceRoom.java
similarity index 94%
rename from core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/standard/SewerBossEntranceRoom.java
rename to core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/sewerboss/SewerBossEntranceRoom.java
index 22681efe5..8d63f256b 100644
--- a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/standard/SewerBossEntranceRoom.java
+++ b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/sewerboss/SewerBossEntranceRoom.java
@@ -19,12 +19,13 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>
  */
 
-package com.shatteredpixel.shatteredpixeldungeon.levels.rooms.standard;
+package com.shatteredpixel.shatteredpixeldungeon.levels.rooms.sewerboss;
 
 import com.shatteredpixel.shatteredpixeldungeon.levels.Level;
 import com.shatteredpixel.shatteredpixeldungeon.levels.Terrain;
 import com.shatteredpixel.shatteredpixeldungeon.levels.painters.Painter;
 import com.shatteredpixel.shatteredpixeldungeon.levels.rooms.Room;
+import com.shatteredpixel.shatteredpixeldungeon.levels.rooms.standard.EntranceRoom;
 import com.watabou.utils.Point;
 
 public class SewerBossEntranceRoom extends EntranceRoom {
diff --git a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/sewerboss/ThickPillarsGooRoom.java b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/sewerboss/ThickPillarsGooRoom.java
new file mode 100644
index 000000000..fbd950ae0
--- /dev/null
+++ b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/sewerboss/ThickPillarsGooRoom.java
@@ -0,0 +1,58 @@
+/*
+ * Pixel Dungeon
+ * Copyright (C) 2012-2015 Oleg Dolya
+ *
+ * Shattered Pixel Dungeon
+ * Copyright (C) 2014-2019 Evan Debenham
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ */
+
+package com.shatteredpixel.shatteredpixeldungeon.levels.rooms.sewerboss;
+
+import com.shatteredpixel.shatteredpixeldungeon.actors.mobs.Goo;
+import com.shatteredpixel.shatteredpixeldungeon.levels.Level;
+import com.shatteredpixel.shatteredpixeldungeon.levels.Terrain;
+import com.shatteredpixel.shatteredpixeldungeon.levels.painters.Painter;
+import com.shatteredpixel.shatteredpixeldungeon.levels.rooms.connection.PerimeterRoom;
+
+public class ThickPillarsGooRoom extends GooBossRoom {
+	
+	@Override
+	public void paint(Level level) {
+		
+		Painter.fill( level, this, Terrain.WALL );
+		Painter.fill( level, this, 1 , Terrain.WATER );
+		
+		int pillarW = (width()-8)/2;
+		int pillarH = (height()-8)/2;
+		
+		Painter.fill(level, left+2, top+2, pillarW+1, pillarH+1, Terrain.WALL);
+		Painter.fill(level, left+2, bottom-2-pillarH, pillarW+1, pillarH+1, Terrain.WALL);
+		Painter.fill(level, right-2-pillarW, top+2, pillarW+1, pillarH+1, Terrain.WALL);
+		Painter.fill(level, right-2-pillarW, bottom-2-pillarH, pillarW+1, pillarH+1, Terrain.WALL);
+		
+		PerimeterRoom.fillPerimiterPaths(level, this, Terrain.EMPTY_SP);
+		
+		for (Door door : connected.values()) {
+			door.set(Door.Type.REGULAR);
+		}
+		
+		setupGooNest(level);
+		
+		Goo boss = new Goo();
+		boss.pos = level.pointToCell(center());
+		level.mobs.add( boss );
+	}
+}
diff --git a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/sewerboss/ThinPillarsGooRoom.java b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/sewerboss/ThinPillarsGooRoom.java
new file mode 100644
index 000000000..cc8e2193d
--- /dev/null
+++ b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/sewerboss/ThinPillarsGooRoom.java
@@ -0,0 +1,71 @@
+/*
+ * Pixel Dungeon
+ * Copyright (C) 2012-2015 Oleg Dolya
+ *
+ * Shattered Pixel Dungeon
+ * Copyright (C) 2014-2019 Evan Debenham
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ */
+
+package com.shatteredpixel.shatteredpixeldungeon.levels.rooms.sewerboss;
+
+import com.shatteredpixel.shatteredpixeldungeon.actors.mobs.Goo;
+import com.shatteredpixel.shatteredpixeldungeon.levels.Level;
+import com.shatteredpixel.shatteredpixeldungeon.levels.Terrain;
+import com.shatteredpixel.shatteredpixeldungeon.levels.painters.Painter;
+import com.shatteredpixel.shatteredpixeldungeon.levels.rooms.connection.PerimeterRoom;
+
+public class ThinPillarsGooRoom extends GooBossRoom {
+	
+	@Override
+	public void paint(Level level) {
+		
+		Painter.fill( level, this, Terrain.WALL );
+		Painter.fill( level, this, 1 , Terrain.WATER );
+		
+		int pillarW = (width() == 14 ? 4: 2) + width()%2;
+		int pillarH = (height() == 14 ? 4: 2) + height()%2;
+		
+		if (height() < 12){
+			Painter.fill(level, left + (width()-pillarW)/2, top+2, pillarW, 1, Terrain.WALL);
+			Painter.fill(level, left + (width()-pillarW)/2, bottom-2, pillarW, 1, Terrain.WALL);
+		} else {
+			Painter.fill(level, left + (width()-pillarW)/2, top+3, pillarW, 1, Terrain.WALL);
+			Painter.fill(level, left + (width()-pillarW)/2, bottom-3, pillarW, 1, Terrain.WALL);
+		}
+		
+		if (width() < 12){
+			Painter.fill(level, left + 2, top + (height() - pillarH)/2, 1, pillarH, Terrain.WALL);
+			Painter.fill(level, right - 2, top + (height() - pillarH)/2, 1, pillarH, Terrain.WALL);
+		} else {
+			Painter.fill(level, left + 3, top + (height() - pillarH)/2, 1, pillarH, Terrain.WALL);
+			Painter.fill(level, right - 3, top + (height() - pillarH)/2, 1, pillarH, Terrain.WALL);
+		}
+		
+		PerimeterRoom.fillPerimiterPaths(level, this, Terrain.EMPTY_SP);
+		
+		for (Door door : connected.values()) {
+			door.set(Door.Type.REGULAR);
+		}
+		
+		setupGooNest(level);
+		
+		Goo boss = new Goo();
+		boss.pos = level.pointToCell(center());
+		level.mobs.add( boss );
+		
+	}
+	
+}
diff --git a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/sewerboss/WalledGooRoom.java b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/sewerboss/WalledGooRoom.java
new file mode 100644
index 000000000..649129a23
--- /dev/null
+++ b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/sewerboss/WalledGooRoom.java
@@ -0,0 +1,71 @@
+/*
+ * Pixel Dungeon
+ * Copyright (C) 2012-2015 Oleg Dolya
+ *
+ * Shattered Pixel Dungeon
+ * Copyright (C) 2014-2019 Evan Debenham
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ */
+
+package com.shatteredpixel.shatteredpixeldungeon.levels.rooms.sewerboss;
+
+import com.shatteredpixel.shatteredpixeldungeon.actors.mobs.Goo;
+import com.shatteredpixel.shatteredpixeldungeon.levels.Level;
+import com.shatteredpixel.shatteredpixeldungeon.levels.Terrain;
+import com.shatteredpixel.shatteredpixeldungeon.levels.painters.Painter;
+import com.watabou.utils.Point;
+
+public class WalledGooRoom extends GooBossRoom {
+	
+	@Override
+	public void paint(Level level) {
+		Painter.fill( level, this, Terrain.WALL );
+		Painter.fill( level, this, 1 , Terrain.EMPTY_SP );
+		Painter.fill( level, this, 2 , Terrain.EMPTY );
+		
+		int pillarW = (width()-2)/3;
+		int pillarH = (height()-2)/3;
+		
+		Painter.fill(level, left+2, top+2, pillarW, 1, Terrain.WALL);
+		Painter.fill(level, left+2, top+2, 1, pillarH, Terrain.WALL);
+		
+		Painter.fill(level, left+2, bottom-2, pillarW, 1, Terrain.WALL);
+		Painter.fill(level, left+2, bottom-1-pillarH, 1, pillarH, Terrain.WALL);
+		
+		Painter.fill(level, right-1-pillarW, top+2, pillarW, 1, Terrain.WALL);
+		Painter.fill(level, right-2, top+2, 1, pillarH, Terrain.WALL);
+		
+		Painter.fill(level, right-1-pillarW, bottom-2, pillarW, 1, Terrain.WALL);
+		Painter.fill(level, right-2, bottom-1-pillarH, 1, pillarH, Terrain.WALL);
+		
+		for (Door door : connected.values()) {
+			door.set(Door.Type.REGULAR);
+		}
+		
+		Painter.fill( level, left + width()/2 - 1, top + height()/2 - 2, 2 + width()%2, 4 + height()%2, Terrain.WATER);
+		Painter.fill( level, left + width()/2 - 2, top + height()/2 - 1, 4 + width()%2, 2 + height()%2, Terrain.WATER);
+		
+		setupGooNest(level);
+		
+		Goo boss = new Goo();
+		boss.pos = level.pointToCell(center());
+		level.mobs.add( boss );
+	}
+	
+	@Override
+	public boolean canPlaceWater(Point p) {
+		return false;
+	}
+}
diff --git a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/special/SpecialRoom.java b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/special/SpecialRoom.java
index 056891b1b..3b4c736cd 100644
--- a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/special/SpecialRoom.java
+++ b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/special/SpecialRoom.java
@@ -30,7 +30,7 @@ import com.watabou.utils.Random;
 import java.util.ArrayList;
 import java.util.Arrays;
 
-public class SpecialRoom extends Room {
+public abstract class SpecialRoom extends Room {
 	
 	@Override
 	public int minWidth() { return 5; }
@@ -42,12 +42,6 @@ public class SpecialRoom extends Room {
 	}
 	public int maxHeight() { return 10; }
 	
-	@Override
-	public int minConnections(int direction) {
-		if (direction == ALL)   return 1;
-		else                    return 0;
-	}
-	
 	@Override
 	public int maxConnections(int direction) {
 		return 1;
diff --git a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/standard/AquariumRoom.java b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/standard/AquariumRoom.java
index ee2340b93..c2747f44e 100644
--- a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/standard/AquariumRoom.java
+++ b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/standard/AquariumRoom.java
@@ -64,8 +64,6 @@ public class AquariumRoom extends StandardRoom {
 		for (Door door : connected.values()) {
 			door.set( Door.Type.REGULAR );
 		}
-		
-		super.paint(level);
 	}
 	
 }
diff --git a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/standard/PlantsRoom.java b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/standard/PlantsRoom.java
index 9c2905d5c..4bde5f1a2 100644
--- a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/standard/PlantsRoom.java
+++ b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/standard/PlantsRoom.java
@@ -94,8 +94,6 @@ public class PlantsRoom extends StandardRoom {
 		for (Door door : connected.values()) {
 			door.set( Door.Type.REGULAR );
 		}
-		
-		super.paint(level);
 	}
 	
 	private static Plant.Seed randomSeed(){
diff --git a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/standard/StandardRoom.java b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/standard/StandardRoom.java
index 01098f7a2..8ac22d700 100644
--- a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/standard/StandardRoom.java
+++ b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/standard/StandardRoom.java
@@ -98,18 +98,6 @@ public abstract class StandardRoom extends Room {
 	public int minHeight() { return sizeCat.minDim; }
 	public int maxHeight() { return sizeCat.maxDim; }
 	
-	@Override
-	public int minConnections(int direction) {
-		if (direction == ALL)   return 1;
-		else                    return 0;
-	}
-	
-	@Override
-	public int maxConnections(int direction) {
-		if (direction == ALL)   return 16;
-		else                    return 4;
-	}
-	
 	//FIXME this is a very messy way of handing variable standard rooms
 	private static ArrayList<Class<?extends StandardRoom>> rooms = new ArrayList<>();
 	static {
@@ -149,7 +137,7 @@ public abstract class StandardRoom extends Room {
 		chances[1] =  new float[]{20,  15,5, 0,0, 0,0, 0,0, 0,0,    1,0,1,0,1,0,1,1,0,0};
 		chances[2] =  new float[]{20,  15,5, 0,0, 0,0, 0,0, 0,0,    1,1,1,1,1,1,1,1,1,1};
 		chances[4] =  chances[3] = chances[2];
-		chances[5] =  new float[]{50,  0,0, 0,0, 0,0, 0,0, 0,0,     0,0,0,0,0,0,0,0,0,0};
+		chances[5] =  new float[]{20,  15,5, 0,0, 0,0, 0,0, 0,0,    0,0,0,0,0,0,0,0,0,0};
 		
 		chances[6] =  new float[]{20,  0,0, 15,5, 0,0, 0,0, 0,0,    1,1,1,1,1,1,1,1,1,1};
 		chances[10] = chances[9] = chances[8] = chances[7] = chances[6];