diff --git a/DungeonShooting_Godot/prefab/bullet/Bullet0001.tscn b/DungeonShooting_Godot/prefab/bullet/Bullet0001.tscn
index 216cd74..a1f4b70 100644
--- a/DungeonShooting_Godot/prefab/bullet/Bullet0001.tscn
+++ b/DungeonShooting_Godot/prefab/bullet/Bullet0001.tscn
@@ -36,7 +36,7 @@
 }]
 
 [sub_resource type="RectangleShape2D" id="RectangleShape2D_lcqb8"]
-size = Vector2(11, 4)
+size = Vector2(9, 4)
 
 [node name="Bullet0001" type="CharacterBody2D" node_paths=PackedStringArray("CollisionArea", "ShadowSprite", "AnimatedSprite", "Collision")]
 collision_layer = 2
@@ -66,5 +66,5 @@
 shape = SubResource("RectangleShape2D_lcqb8")
 
 [node name="Collision" type="CollisionShape2D" parent="."]
-position = Vector2(2.5, 0)
+position = Vector2(1.5, 0)
 shape = SubResource("RectangleShape2D_lcqb8")
diff --git a/DungeonShooting_Godot/prefab/bullet/Bullet0003.tscn b/DungeonShooting_Godot/prefab/bullet/Bullet0003.tscn
index 02a9502..18fab3e 100644
--- a/DungeonShooting_Godot/prefab/bullet/Bullet0003.tscn
+++ b/DungeonShooting_Godot/prefab/bullet/Bullet0003.tscn
@@ -55,5 +55,4 @@
 shape = SubResource("RectangleShape2D_c0onq")
 
 [node name="Collision" type="CollisionShape2D" parent="."]
-position = Vector2(1, 0)
 shape = SubResource("RectangleShape2D_c0onq")
diff --git a/DungeonShooting_Godot/resource/sprite/bullet/bullet0001.png b/DungeonShooting_Godot/resource/sprite/bullet/bullet0001.png
index afa441e..5b488de 100644
--- a/DungeonShooting_Godot/resource/sprite/bullet/bullet0001.png
+++ b/DungeonShooting_Godot/resource/sprite/bullet/bullet0001.png
Binary files differ
diff --git a/DungeonShooting_Godot/resource/sprite/bullet/bullet0002.png b/DungeonShooting_Godot/resource/sprite/bullet/bullet0002.png
index fc38c20..a76c266 100644
--- a/DungeonShooting_Godot/resource/sprite/bullet/bullet0002.png
+++ b/DungeonShooting_Godot/resource/sprite/bullet/bullet0002.png
Binary files differ
diff --git a/DungeonShooting_Godot/resource/sprite/bullet/bullet0003.png b/DungeonShooting_Godot/resource/sprite/bullet/bullet0003.png
index cbda060..14a69ff 100644
--- a/DungeonShooting_Godot/resource/sprite/bullet/bullet0003.png
+++ b/DungeonShooting_Godot/resource/sprite/bullet/bullet0003.png
Binary files differ
diff --git a/DungeonShooting_Godot/scene/World.tscn b/DungeonShooting_Godot/scene/World.tscn
index 714d780..555b1a4 100644
--- a/DungeonShooting_Godot/scene/World.tscn
+++ b/DungeonShooting_Godot/scene/World.tscn
@@ -7,7 +7,7 @@
 background_mode = 3
 glow_enabled = true
 glow_normalized = true
-glow_strength = 1.1
+glow_strength = 1.05
 glow_blend_mode = 1
 
 [node name="World" type="Node2D" node_paths=PackedStringArray("NormalLayer", "YSortLayer", "TileRoot", "StaticSpriteRoot", "AffiliationAreaRoot")]
diff --git a/DungeonShooting_Godot/src/game/activity/bullet/Bullet.cs b/DungeonShooting_Godot/src/game/activity/bullet/Bullet.cs
index 743708a..67a7a31 100644
--- a/DungeonShooting_Godot/src/game/activity/bullet/Bullet.cs
+++ b/DungeonShooting_Godot/src/game/activity/bullet/Bullet.cs
@@ -77,7 +77,7 @@
         if (Player.Current.CollisionWithMask(targetLayer))
         {
             ShowOutline = true;
-            OutlineColor = new Color(1, 0, 0, 0.9f);
+            OutlineColor = new Color(1, 0, 0);
         }
     }