diff --git a/game/shaders/invert.gdshader b/game/shaders/invert.gdshader
new file mode 100644
index 0000000..1cb9fc8
--- /dev/null
+++ b/game/shaders/invert.gdshader
@@ -0,0 +1,9 @@
+shader_type canvas_item;
+
+uniform sampler2D screen_texture : hint_screen_texture, filter_nearest;
+
+void fragment() {
+    vec4 screen_color = texture(screen_texture, SCREEN_UV);
+    vec3 inverted_color = 1.0 - screen_color.rgb;
+    COLOR.rgb = vec3(inverted_color);
+}
\ No newline at end of file
diff --git a/game/shaders/invert.gdshader.uid b/game/shaders/invert.gdshader.uid
new file mode 100644
index 0000000..554fa7f
--- /dev/null
+++ b/game/shaders/invert.gdshader.uid
@@ -0,0 +1 @@
+uid://cdakbomof1cc6