diff --git a/Asteroid.gd b/Asteroid.gd
index 965c33e..4d33670 100644
--- a/Asteroid.gd
+++ b/Asteroid.gd
@@ -6,6 +6,7 @@ var rot_vel = 0
 
 var max_vel = 6 # pixels per second?
 var max_rot_vel = 2.5 # degrees per second 
+var health = 100
 
 func _ready():
 	randomize()
@@ -28,6 +29,9 @@ func wrap(v, v_min, v_max):
 		return v_min - 1
 	else:
 		return v
+		
+func explode():
+	queue_free()
 
 func _fixed_process(delta):
 	
@@ -36,6 +40,14 @@ func _fixed_process(delta):
 	# cur_pos.y = wrap(cur_pos.y, 1, get_viewport().get_rect().size.y)
 	# set_pos(cur_pos)
 	
+	if is_colliding():
+		var e = get_collider()
+		if e.type() == "Bullet":
+			health -= 25
+			
+	if health <= 0:
+		explode()
+	
 	self.move(velocity)
 	self.rotate(rot_vel)
 
diff --git a/Asteroid.tscn b/Asteroid.tscn
index 48f8ffe..d17819e 100644
--- a/Asteroid.tscn
+++ b/Asteroid.tscn
@@ -1,11 +1,19 @@
-[gd_scene load_steps=3 format=1]
+[gd_scene load_steps=4 format=1]
 
 [ext_resource path="res://Asteroid.gd" type="Script" id=1]
 [ext_resource path="res://raw/asteroid.png" type="Texture" id=2]
 
+[sub_resource type="RectangleShape2D" id=1]
+
+custom_solver_bias = 0.0
+extents = Vector2( 25.1672, 26.3172 )
+
 [node name="Asteroid" type="KinematicBody2D"]
 
 input/pickable = false
+shapes/0/shape = SubResource( 1 )
+shapes/0/transform = Matrix32( 1, 0, 0, 1, -0.17482, 3.67132 )
+shapes/0/trigger = false
 collision/layers = 1
 collision/mask = 1
 collision/margin = 0.08
@@ -15,4 +23,11 @@ script/script = ExtResource( 1 )
 
 texture = ExtResource( 2 )
 
+[node name="CollisionShape2D" type="CollisionShape2D" parent="."]
+
+transform/pos = Vector2( -0.17482, 3.67132 )
+shape = SubResource( 1 )
+trigger = false
+_update_shape_index = 0
+
 
diff --git a/Bullet.gd b/Bullet.gd
index 4e9902b..8991070 100644
--- a/Bullet.gd
+++ b/Bullet.gd
@@ -11,9 +11,17 @@ func _ready():
 func fire(delta, vel, dir, speed):
 	velocity = (vel.length() * dir + (dir * speed * delta))
 	sprite.rotate(dir.angle())
+	
+func type():
+	return "Enemy"
 
 func _fixed_process(delta):
+	
 	move(velocity)
 	lifetime -= delta
+	
+	if is_colliding():
+		var e = get_collider()
+	
 	if lifetime <= 0:
 		queue_free()
\ No newline at end of file
diff --git a/Bullet.tscn b/Bullet.tscn
index 0ce5212..3a38543 100644
--- a/Bullet.tscn
+++ b/Bullet.tscn
@@ -1,11 +1,19 @@
-[gd_scene load_steps=3 format=1]
+[gd_scene load_steps=4 format=1]
 
 [ext_resource path="res://Bullet.gd" type="Script" id=1]
 [ext_resource path="res://raw/simple_bullet.png" type="Texture" id=2]
 
+[sub_resource type="RectangleShape2D" id=1]
+
+custom_solver_bias = 0.0
+extents = Vector2( 0.99762, 3.98857 )
+
 [node name="Bullet" type="KinematicBody2D"]
 
 input/pickable = false
+shapes/0/shape = SubResource( 1 )
+shapes/0/transform = Matrix32( 1, 0, 0, 1, 0, 0 )
+shapes/0/trigger = false
 collision/layers = 1
 collision/mask = 1
 collision/margin = 0.08
@@ -15,4 +23,10 @@ script/script = ExtResource( 1 )
 
 texture = ExtResource( 2 )
 
+[node name="CollisionShape2D" type="CollisionShape2D" parent="."]
+
+shape = SubResource( 1 )
+trigger = false
+_update_shape_index = 0
+
 
diff --git a/EnemyGrunt.gd b/EnemyGrunt.gd
index daa258a..2db49ad 100644
--- a/EnemyGrunt.gd
+++ b/EnemyGrunt.gd
@@ -1,6 +1,7 @@
 extends KinematicBody2D
 
 var grunt_rot_speed = deg2rad(22.5) # degrees per second
+var current_target = null
 
 func _ready():
 	var t = get_tree()
diff --git a/img/player_ship.tex b/img/player_ship.tex
index 924833b..0593476 100644
--- a/img/player_ship.tex
+++ b/img/player_ship.tex
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:ee80f8310c0716d3d0f917da317607e0d9a20fa40ef02c9981f17d1f62bbe44e
-size 934
+oid sha256:19ae97544f084ae4390b575fbd44134e69ba056ca0993a50cdcda21008c5555c
+size 950
diff --git a/raw/player_ship.ase b/raw/player_ship.ase
index a00e5f2..7ce9af1 100644
--- a/raw/player_ship.ase
+++ b/raw/player_ship.ase
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:4f8b9553f7da9e0500ddfe73a11dcf865060d559fd6c9b929e1bed2aff6c13df
-size 720
+oid sha256:ca8e9d7504871a709af802f1057b1454f32629118ec00f754a84d9ebfd4c0dae
+size 732
diff --git a/raw/player_ship.png b/raw/player_ship.png
index 0f8c4df..1d3f68d 100644
Binary files a/raw/player_ship.png and b/raw/player_ship.png differ
diff --git a/raw/power_station.ase b/raw/power_station.ase
index 53041e0..2b3e68e 100644
--- a/raw/power_station.ase
+++ b/raw/power_station.ase
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:ec423b64d26fc631e98da5910e9f22e0e758e12836a3e6409fac3d76ecc1f6ae
-size 1188
+oid sha256:47c369c1ae588c03991289f61ea8f4ee12f1027a071f98bc6d383b1fdf15eb25
+size 1262
diff --git a/raw/power_station.png b/raw/power_station.png
index 0323016..5fd8951 100644
Binary files a/raw/power_station.png and b/raw/power_station.png differ