diff --git a/default_bus_layout.tres b/default_bus_layout.tres
new file mode 100644
index 0000000..4ef58b7
--- /dev/null
+++ b/default_bus_layout.tres
@@ -0,0 +1,15 @@
+[gd_resource type="AudioBusLayout" format=3 uid="uid://cdugntqhtcyd"]
+
+[resource]
+bus/1/name = &"BGM"
+bus/1/solo = false
+bus/1/mute = false
+bus/1/bypass_fx = false
+bus/1/volume_db = 0.0
+bus/1/send = &"Master"
+bus/2/name = &"SoundEffect"
+bus/2/solo = false
+bus/2/mute = false
+bus/2/bypass_fx = false
+bus/2/volume_db = -0.0127316
+bus/2/send = &"Master"
diff --git a/prefab/entitys/Character.tscn b/prefab/entitys/Character.tscn
index 0837ada..d015d78 100644
--- a/prefab/entitys/Character.tscn
+++ b/prefab/entitys/Character.tscn
@@ -59,3 +59,5 @@ position = Vector2(15, 20)
 [node name="DamageNumber" type="Marker2D" parent="."]
 position = Vector2(0, -47)
 script = ExtResource("3_lrmsw")
+
+[node name="AudioListener2D" type="AudioListener2D" parent="."]
diff --git a/prefab/packsacks/packsack.tscn b/prefab/packsacks/packsack.tscn
index cac9ee7..0c95327 100644
--- a/prefab/packsacks/packsack.tscn
+++ b/prefab/packsacks/packsack.tscn
@@ -15,10 +15,6 @@ collision_mask = 38
 script = ExtResource("1_slakl")
 NumberSlots = 30
 Id = "packsack"
-UniqueName = null
-UniqueDescription = null
-_minContactInjury = null
-_maxContactInjury = null
 
 [node name="DamageArea2D" type="Area2D" parent="."]
 collision_layer = 8
diff --git a/prefab/projectile/curseOfTheUndead.tscn b/prefab/projectile/curseOfTheUndead.tscn
index ba4ffa5..3f34eb5 100644
--- a/prefab/projectile/curseOfTheUndead.tscn
+++ b/prefab/projectile/curseOfTheUndead.tscn
@@ -30,3 +30,7 @@ collision_mask = 78
 
 [node name="CollisionShape2D" type="CollisionShape2D" parent="CollisionDetectionArea"]
 shape = SubResource("CircleShape2D_8117d")
+
+[node name="AudioStreamPlayer2D" type="AudioStreamPlayer2D" parent="."]
+bus = &"SoundEffect"
+area_mask = 16
diff --git a/prefab/weapons/staffOfTheUndead.tscn b/prefab/weapons/staffOfTheUndead.tscn
index c666b57..666f0d3 100644
--- a/prefab/weapons/staffOfTheUndead.tscn
+++ b/prefab/weapons/staffOfTheUndead.tscn
@@ -1,8 +1,9 @@
-[gd_scene load_steps=6 format=3 uid="uid://dnnn2xyayiehk"]
+[gd_scene load_steps=7 format=3 uid="uid://dnnn2xyayiehk"]
 
 [ext_resource type="Texture2D" uid="uid://e6670ykyq145" path="res://sprites/weapon/staffOfTheUndead.png" id="1_ms3us"]
 [ext_resource type="Script" path="res://scripts/weapon/ProjectileWeapon.cs" id="1_w8hhv"]
 [ext_resource type="PackedScene" uid="uid://c01av43yk1q71" path="res://prefab/projectile/curseOfTheUndead.tscn" id="2_34250"]
+[ext_resource type="AudioStream" uid="uid://cak6chjjsu7wo" path="res://sounds/fire.wav" id="4_ffr2k"]
 
 [sub_resource type="RectangleShape2D" id="RectangleShape2D_obcq2"]
 size = Vector2(49, 5)
@@ -36,3 +37,7 @@ shape = SubResource("RectangleShape2D_14m1g")
 
 [node name="Marker2D" type="Marker2D" parent="."]
 position = Vector2(65, 0)
+
+[node name="AudioStreamPlayer2D" type="AudioStreamPlayer2D" parent="Marker2D"]
+stream = ExtResource("4_ffr2k")
+bus = &"SoundEffect"
diff --git a/scripts/pickable/PickAbleTemplate.cs b/scripts/pickable/PickAbleTemplate.cs
index a52c4ac..21f147f 100644
--- a/scripts/pickable/PickAbleTemplate.cs
+++ b/scripts/pickable/PickAbleTemplate.cs
@@ -80,7 +80,7 @@ public partial class PickAbleTemplate : RigidBody2D, IItem
 
         //If it leaves the ground or walls.
         //如果离开了地面或墙壁。
-        if (node is TileMap)
+        if (node is TileMapLayer)
         {
             _tileMapNumber--;
             if (_tileMapNumber == 0)
@@ -105,7 +105,7 @@ public partial class PickAbleTemplate : RigidBody2D, IItem
             return;
         }
 
-        if (node is TileMap)
+        if (node is TileMapLayer)
         {
             _tileMapNumber++;
             EnableContactInjury = false;
diff --git a/scripts/weapon/WeaponTemplate.cs b/scripts/weapon/WeaponTemplate.cs
index b6380f9..93620ee 100644
--- a/scripts/weapon/WeaponTemplate.cs
+++ b/scripts/weapon/WeaponTemplate.cs
@@ -13,6 +13,18 @@ public abstract partial class WeaponTemplate : PickAbleTemplate
 {
     private float _gravity = ProjectSettings.GetSetting("physics/2d/default_gravity").AsSingle();
 
+    /// <summary>
+    /// <para>Fire audio playback component</para>
+    /// <para>开火音效播放组件</para>
+    /// </summary>
+    private AudioStreamPlayer2D? _audioStreamPlayer2D;
+    
+    public override void _Ready()
+    {
+        base._Ready();
+        _audioStreamPlayer2D = GetNodeOrNull<AudioStreamPlayer2D>("Marker2D/AudioStreamPlayer2D");
+    }
+
     public override void Use(Node2D? owner, Vector2 targetGlobalPosition)
     {
         Fire(owner, targetGlobalPosition);
@@ -93,6 +105,7 @@ public abstract partial class WeaponTemplate : PickAbleTemplate
             }
         }
 
+        _audioStreamPlayer2D?.Play();
         DoFire(owner, enemyGlobalPosition);
         _lastFiringTime = nowTime;
     }
diff --git a/sounds/fire.wav b/sounds/fire.wav
new file mode 100644
index 0000000..397b8e1
Binary files /dev/null and b/sounds/fire.wav differ
diff --git a/sounds/fire.wav.import b/sounds/fire.wav.import
new file mode 100644
index 0000000..e0a8a2d
--- /dev/null
+++ b/sounds/fire.wav.import
@@ -0,0 +1,24 @@
+[remap]
+
+importer="wav"
+type="AudioStreamWAV"
+uid="uid://cak6chjjsu7wo"
+path="res://.godot/imported/fire.wav-bffbfc47d9390c80437953e7f312d8b6.sample"
+
+[deps]
+
+source_file="res://sounds/fire.wav"
+dest_files=["res://.godot/imported/fire.wav-bffbfc47d9390c80437953e7f312d8b6.sample"]
+
+[params]
+
+force/8_bit=false
+force/mono=false
+force/max_rate=false
+force/max_rate_hz=44100
+edit/trim=false
+edit/normalize=false
+edit/loop_mode=0
+edit/loop_begin=0
+edit/loop_end=-1
+compress/mode=0