diff --git a/graphics/tiles/25-10-26-godot-course-Terrain (32x32)-color-exchange-1.png b/graphics/tiles/25-10-26-godot-course-Terrain (32x32)-color-exchange-1.png
new file mode 100644
index 0000000..d5ba93a
Binary files /dev/null and b/graphics/tiles/25-10-26-godot-course-Terrain (32x32)-color-exchange-1.png differ
diff --git a/graphics/tiles/25-10-26-godot-course-Terrain (32x32)-color-exchange-1.png.import b/graphics/tiles/25-10-26-godot-course-Terrain (32x32)-color-exchange-1.png.import
new file mode 100644
index 0000000..524613e
--- /dev/null
+++ b/graphics/tiles/25-10-26-godot-course-Terrain (32x32)-color-exchange-1.png.import	
@@ -0,0 +1,40 @@
+[remap]
+
+importer="texture"
+type="CompressedTexture2D"
+uid="uid://dkco6bp2yelei"
+path="res://.godot/imported/25-10-26-godot-course-Terrain (32x32)-color-exchange-1.png-a7f4ab763f4d056bc60508fae2c91a2e.ctex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://graphics/tiles/25-10-26-godot-course-Terrain (32x32)-color-exchange-1.png"
+dest_files=["res://.godot/imported/25-10-26-godot-course-Terrain (32x32)-color-exchange-1.png-a7f4ab763f4d056bc60508fae2c91a2e.ctex"]
+
+[params]
+
+compress/mode=0
+compress/high_quality=false
+compress/lossy_quality=0.7
+compress/uastc_level=0
+compress/rdo_quality_loss=0.0
+compress/hdr_compression=1
+compress/normal_map=0
+compress/channel_pack=0
+mipmaps/generate=false
+mipmaps/limit=-1
+roughness/mode=0
+roughness/src_normal=""
+process/channel_remap/red=0
+process/channel_remap/green=1
+process/channel_remap/blue=2
+process/channel_remap/alpha=3
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/normal_map_invert_y=false
+process/hdr_as_srgb=false
+process/hdr_clamp_exposure=false
+process/size_limit=0
+detect_3d/compress_to=1
diff --git a/scenes/bullet.tscn b/scenes/bullet.tscn
index de8fb23..dbabb44 100644
--- a/scenes/bullet.tscn
+++ b/scenes/bullet.tscn
@@ -7,8 +7,9 @@
 size = Vector2(16, 2)
 
 [node name="Bullet" type="Area2D"]
+z_index = 100
 collision_layer = 8
-collision_mask = 14
+collision_mask = 6
 script = ExtResource("1_mkf8s")
 
 [node name="CollisionShape2D" type="CollisionShape2D" parent="."]
diff --git a/scenes/game.tscn b/scenes/game.tscn
index 06f9904..5731833 100644
--- a/scenes/game.tscn
+++ b/scenes/game.tscn
@@ -5,10 +5,10 @@
 [ext_resource type="Script" uid="uid://b84pdw14l6gb6" path="res://scripts/scene_manager.gd" id="2_iywne"]
 [ext_resource type="PackedScene" uid="uid://2pp1gtlflav8" path="res://scenes/trigger.tscn" id="2_yqjtg"]
 [ext_resource type="PackedScene" uid="uid://d3y1iqmpknpyo" path="res://scenes/player.tscn" id="3_lnu2h"]
-[ext_resource type="Texture2D" uid="uid://cf3dxavo2u8yg" path="res://graphics/tiles/25-10-18-godot-course-Terrain (32x32).png" id="3_p57ef"]
+[ext_resource type="Texture2D" uid="uid://dkco6bp2yelei" path="res://graphics/tiles/25-10-26-godot-course-Terrain (32x32)-color-exchange-1.png" id="3_u5sy4"]
 
-[sub_resource type="TileSetAtlasSource" id="TileSetAtlasSource_p57ef"]
-texture = ExtResource("3_p57ef")
+[sub_resource type="TileSetAtlasSource" id="TileSetAtlasSource_gee14"]
+texture = ExtResource("3_u5sy4")
 texture_region_size = Vector2i(32, 32)
 0:0/0 = 0
 0:0/0/terrain_set = 0
@@ -394,7 +394,7 @@ physics_layer_0/collision_mask = 13
 terrain_set_0/mode = 0
 terrain_set_0/terrain_0/name = "Main Terrain"
 terrain_set_0/terrain_0/color = Color(0.5, 0.34375, 0.25, 1)
-sources/1 = SubResource("TileSetAtlasSource_p57ef")
+sources/0 = SubResource("TileSetAtlasSource_gee14")
 
 [sub_resource type="Gradient" id="Gradient_iywne"]
 offsets = PackedFloat32Array(0.20666666, 0.66, 0.96666664)
@@ -436,7 +436,7 @@ script = ExtResource("2_iywne")
 [node name="TileMapLayer" type="TileMapLayer" parent="."]
 z_index = 10
 position = Vector2(0, 1)
-tile_map_data = PackedByteArray("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")
+tile_map_data = PackedByteArray("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")
 tile_set = SubResource("TileSet_gee14")
 
 [node name="Background" type="Parallax2D" parent="."]