diff --git a/enemy_bullet.gd b/enemy_bullet.gd
index b9c9546..20f5208 100644
--- a/enemy_bullet.gd
+++ b/enemy_bullet.gd
@@ -1,6 +1,7 @@
 extends Area2D
 
 @export var speed = 150
+var shader_active = false
 
 func start(pos):
     position = pos
@@ -14,4 +15,8 @@ func _on_visible_on_screen_notifier_2d_screen_exited():
 func _on_area_entered(area):
     if area.name == "Player":
         queue_free()
+        shader_active = true
+        $Player.ship.material.set_shader_param("toggle", 1.0)
+        shader_active = false
+        $Player.ship.material.set_shader_param("toggle", 0.0)
         area.shield -= 1
diff --git a/player.tscn b/player.tscn
index 259f3a9..6adc0f5 100644
--- a/player.tscn
+++ b/player.tscn
@@ -1,12 +1,17 @@
-[gd_scene load_steps=15 format=3 uid="uid://pyuorpwb7lpe"]
+[gd_scene load_steps=17 format=3 uid="uid://pyuorpwb7lpe"]
 
 [ext_resource type="Script" uid="uid://dcrnf4r6c5qaw" path="res://player.gd" id="1_sweqy"]
 [ext_resource type="PackedScene" uid="uid://bwxxdrdvo3le0" path="res://bullet.tscn" id="2_1jxqw"]
 [ext_resource type="Texture2D" uid="uid://di2xhcwcdbhxg" path="res://Mini Pixel Pack 3/Player ship/Player_ship (16 x 16).png" id="2_2hs0m"]
 [ext_resource type="Texture2D" uid="uid://ces8fm7lxh574" path="res://Mini Pixel Pack 3/Player ship/Boosters (16 x 16).png" id="3_1jxqw"]
+[ext_resource type="Shader" uid="uid://dfywtah53il1m" path="res://player_hit.gdshader" id="3_dw050"]
 [ext_resource type="Texture2D" uid="uid://bjdhq42ummgky" path="res://Mini Pixel Pack 3/Player ship/Boosters_left (16 x 16).png" id="4_dw050"]
 [ext_resource type="Texture2D" uid="uid://cjv3xbuj65pav" path="res://Mini Pixel Pack 3/Player ship/Boosters_right (16 x 16).png" id="5_b26j0"]
 
+[sub_resource type="ShaderMaterial" id="ShaderMaterial_b26j0"]
+shader = ExtResource("3_dw050")
+shader_parameter/toggle = 0.0
+
 [sub_resource type="AtlasTexture" id="AtlasTexture_n7ghd"]
 atlas = ExtResource("3_1jxqw")
 region = Rect2(0, 0, 16, 16)
@@ -74,7 +79,9 @@ size = Vector2(14, 14)
 script = ExtResource("1_sweqy")
 bullet_scene = ExtResource("2_1jxqw")
 
-[node name="Ship" type="Sprite2D" parent="."]
+[node name="Ship" type="Sprite2D" parent="." groups=["ship"]]
+unique_name_in_owner = true
+material = SubResource("ShaderMaterial_b26j0")
 texture = ExtResource("2_2hs0m")
 hframes = 3
 frame = 1
diff --git a/player_hit.gdshader b/player_hit.gdshader
new file mode 100644
index 0000000..958ffe7
--- /dev/null
+++ b/player_hit.gdshader
@@ -0,0 +1,17 @@
+shader_type canvas_item;
+
+uniform float toggle;
+
+void vertex() {
+	// Called for every vertex the material is visible on.
+}
+
+void fragment() {
+    COLOR = texture(TEXTURE, UV);
+    COLOR.r = mix(COLOR.r, abs(sin(TIME * 20.25)), toggle);
+}
+
+//void light() {
+//	// Called for every pixel for every light affecting the CanvasItem.
+//	// Uncomment to replace the default light processing function with this one.
+//}
diff --git a/player_hit.gdshader.uid b/player_hit.gdshader.uid
new file mode 100644
index 0000000..cd17600
--- /dev/null
+++ b/player_hit.gdshader.uid
@@ -0,0 +1 @@
+uid://dfywtah53il1m