diff --git a/Cargo.toml b/Cargo.toml
index 74dbe53..b4118b1 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -51,3 +51,7 @@ path = "examples/scenarios/road_race.rs"
 [[example]]
 name = "extreme_drivers_ed"
 path = "examples/scenarios/extreme_drivers_ed.rs"
+
+[[example]]
+name = "invaders"
+path = "examples/scenarios/invaders.rs"
diff --git a/assets/sprite/space/block_blank_blue.collider b/assets/sprite/space/block_blank_blue.collider
new file mode 100644
index 0000000..9254b6b
--- /dev/null
+++ b/assets/sprite/space/block_blank_blue.collider
@@ -0,0 +1,14 @@
+Poly([
+    (-17.0, -11.5),
+    (-17.0, 11.5),
+    (-15.0, 14.5),
+    (-12.0, 16.5),
+    (11.0, 16.5),
+    (14.0, 14.5),
+    (16.0, 11.5),
+    (16.0, -11.5),
+    (14.0, -14.5),
+    (11.0, -16.5),
+    (-12.0, -16.5),
+    (-15.0, -14.5),
+])
\ No newline at end of file
diff --git a/assets/sprite/space/block_blank_blue.png b/assets/sprite/space/block_blank_blue.png
new file mode 100644
index 0000000..1118e1b
Binary files /dev/null and b/assets/sprite/space/block_blank_blue.png differ
diff --git a/assets/sprite/space/block_blank_red.collider b/assets/sprite/space/block_blank_red.collider
new file mode 100644
index 0000000..9254b6b
--- /dev/null
+++ b/assets/sprite/space/block_blank_red.collider
@@ -0,0 +1,14 @@
+Poly([
+    (-17.0, -11.5),
+    (-17.0, 11.5),
+    (-15.0, 14.5),
+    (-12.0, 16.5),
+    (11.0, 16.5),
+    (14.0, 14.5),
+    (16.0, 11.5),
+    (16.0, -11.5),
+    (14.0, -14.5),
+    (11.0, -16.5),
+    (-12.0, -16.5),
+    (-15.0, -14.5),
+])
\ No newline at end of file
diff --git a/assets/sprite/space/block_blank_red.png b/assets/sprite/space/block_blank_red.png
new file mode 100644
index 0000000..645f1e3
Binary files /dev/null and b/assets/sprite/space/block_blank_red.png differ
diff --git a/assets/sprite/space/block_bolt_blue.collider b/assets/sprite/space/block_bolt_blue.collider
new file mode 100644
index 0000000..9254b6b
--- /dev/null
+++ b/assets/sprite/space/block_bolt_blue.collider
@@ -0,0 +1,14 @@
+Poly([
+    (-17.0, -11.5),
+    (-17.0, 11.5),
+    (-15.0, 14.5),
+    (-12.0, 16.5),
+    (11.0, 16.5),
+    (14.0, 14.5),
+    (16.0, 11.5),
+    (16.0, -11.5),
+    (14.0, -14.5),
+    (11.0, -16.5),
+    (-12.0, -16.5),
+    (-15.0, -14.5),
+])
\ No newline at end of file
diff --git a/assets/sprite/space/block_bolt_blue.png b/assets/sprite/space/block_bolt_blue.png
new file mode 100644
index 0000000..28f7aeb
Binary files /dev/null and b/assets/sprite/space/block_bolt_blue.png differ
diff --git a/assets/sprite/space/block_bolt_red.collider b/assets/sprite/space/block_bolt_red.collider
new file mode 100644
index 0000000..9254b6b
--- /dev/null
+++ b/assets/sprite/space/block_bolt_red.collider
@@ -0,0 +1,14 @@
+Poly([
+    (-17.0, -11.5),
+    (-17.0, 11.5),
+    (-15.0, 14.5),
+    (-12.0, 16.5),
+    (11.0, 16.5),
+    (14.0, 14.5),
+    (16.0, 11.5),
+    (16.0, -11.5),
+    (14.0, -14.5),
+    (11.0, -16.5),
+    (-12.0, -16.5),
+    (-15.0, -14.5),
+])
\ No newline at end of file
diff --git a/assets/sprite/space/block_bolt_red.png b/assets/sprite/space/block_bolt_red.png
new file mode 100644
index 0000000..ddd1417
Binary files /dev/null and b/assets/sprite/space/block_bolt_red.png differ
diff --git a/assets/sprite/space/block_shield_blue.collider b/assets/sprite/space/block_shield_blue.collider
new file mode 100644
index 0000000..9254b6b
--- /dev/null
+++ b/assets/sprite/space/block_shield_blue.collider
@@ -0,0 +1,14 @@
+Poly([
+    (-17.0, -11.5),
+    (-17.0, 11.5),
+    (-15.0, 14.5),
+    (-12.0, 16.5),
+    (11.0, 16.5),
+    (14.0, 14.5),
+    (16.0, 11.5),
+    (16.0, -11.5),
+    (14.0, -14.5),
+    (11.0, -16.5),
+    (-12.0, -16.5),
+    (-15.0, -14.5),
+])
\ No newline at end of file
diff --git a/assets/sprite/space/block_shield_blue.png b/assets/sprite/space/block_shield_blue.png
new file mode 100644
index 0000000..b6f2d4c
Binary files /dev/null and b/assets/sprite/space/block_shield_blue.png differ
diff --git a/assets/sprite/space/block_shield_red.collider b/assets/sprite/space/block_shield_red.collider
new file mode 100644
index 0000000..9254b6b
--- /dev/null
+++ b/assets/sprite/space/block_shield_red.collider
@@ -0,0 +1,14 @@
+Poly([
+    (-17.0, -11.5),
+    (-17.0, 11.5),
+    (-15.0, 14.5),
+    (-12.0, 16.5),
+    (11.0, 16.5),
+    (14.0, 14.5),
+    (16.0, 11.5),
+    (16.0, -11.5),
+    (14.0, -14.5),
+    (11.0, -16.5),
+    (-12.0, -16.5),
+    (-15.0, -14.5),
+])
\ No newline at end of file
diff --git a/assets/sprite/space/block_shield_red.png b/assets/sprite/space/block_shield_red.png
new file mode 100644
index 0000000..7e0efd5
Binary files /dev/null and b/assets/sprite/space/block_shield_red.png differ
diff --git a/assets/sprite/space/block_star_blue.collider b/assets/sprite/space/block_star_blue.collider
new file mode 100644
index 0000000..9254b6b
--- /dev/null
+++ b/assets/sprite/space/block_star_blue.collider
@@ -0,0 +1,14 @@
+Poly([
+    (-17.0, -11.5),
+    (-17.0, 11.5),
+    (-15.0, 14.5),
+    (-12.0, 16.5),
+    (11.0, 16.5),
+    (14.0, 14.5),
+    (16.0, 11.5),
+    (16.0, -11.5),
+    (14.0, -14.5),
+    (11.0, -16.5),
+    (-12.0, -16.5),
+    (-15.0, -14.5),
+])
\ No newline at end of file
diff --git a/assets/sprite/space/block_star_blue.png b/assets/sprite/space/block_star_blue.png
new file mode 100644
index 0000000..eeda7bc
Binary files /dev/null and b/assets/sprite/space/block_star_blue.png differ
diff --git a/assets/sprite/space/block_star_red.collider b/assets/sprite/space/block_star_red.collider
new file mode 100644
index 0000000..9254b6b
--- /dev/null
+++ b/assets/sprite/space/block_star_red.collider
@@ -0,0 +1,14 @@
+Poly([
+    (-17.0, -11.5),
+    (-17.0, 11.5),
+    (-15.0, 14.5),
+    (-12.0, 16.5),
+    (11.0, 16.5),
+    (14.0, 14.5),
+    (16.0, 11.5),
+    (16.0, -11.5),
+    (14.0, -14.5),
+    (11.0, -16.5),
+    (-12.0, -16.5),
+    (-15.0, -14.5),
+])
\ No newline at end of file
diff --git a/assets/sprite/space/block_star_red.png b/assets/sprite/space/block_star_red.png
new file mode 100644
index 0000000..ea98f39
Binary files /dev/null and b/assets/sprite/space/block_star_red.png differ
diff --git a/assets/sprite/space/enemy_black.collider b/assets/sprite/space/enemy_black.collider
new file mode 100644
index 0000000..2eb164d
--- /dev/null
+++ b/assets/sprite/space/enemy_black.collider
@@ -0,0 +1,10 @@
+Poly([
+    (-46.500004, 14.000001),
+    (-46.500004, 17.0),
+    (-29.500002, 42.0),
+    (29.500002, 42.0),
+    (46.500004, 16.5),
+    (46.500004, 14.000001),
+    (25.500002, -41.0),
+    (-25.500002, -41.0),
+])
\ No newline at end of file
diff --git a/assets/sprite/space/enemy_black.png b/assets/sprite/space/enemy_black.png
new file mode 100644
index 0000000..bc2fa4c
Binary files /dev/null and b/assets/sprite/space/enemy_black.png differ
diff --git a/assets/sprite/space/enemy_blue.collider b/assets/sprite/space/enemy_blue.collider
new file mode 100644
index 0000000..268b0d2
--- /dev/null
+++ b/assets/sprite/space/enemy_blue.collider
@@ -0,0 +1,14 @@
+Poly([
+    (-52.0, 8.0),
+    (-52.0, 14.0),
+    (-50.0, 16.0),
+    (-1.0, 42.0),
+    (1.0, 42.0),
+    (50.0, 16.0),
+    (52.0, 14.0),
+    (52.0, 8.0),
+    (24.0, -41.0),
+    (16.0, -42.0),
+    (-16.0, -42.0),
+    (-24.0, -41.0),
+])
\ No newline at end of file
diff --git a/assets/sprite/space/enemy_blue.png b/assets/sprite/space/enemy_blue.png
new file mode 100644
index 0000000..bf3bd0c
Binary files /dev/null and b/assets/sprite/space/enemy_blue.png differ
diff --git a/assets/sprite/space/enemy_green.collider b/assets/sprite/space/enemy_green.collider
new file mode 100644
index 0000000..459f039
--- /dev/null
+++ b/assets/sprite/space/enemy_green.collider
@@ -0,0 +1,11 @@
+Poly([
+    (-38.5, -42.0),
+    (-51.5, 0.0),
+    (-51.5, 4.0),
+    (-26.5, 36.0),
+    (-8.5, 42.0),
+    (8.5, 42.0),
+    (25.5, 36.0),
+    (51.5, 3.0),
+    (38.5, -42.0),
+])
\ No newline at end of file
diff --git a/assets/sprite/space/enemy_green.png b/assets/sprite/space/enemy_green.png
new file mode 100644
index 0000000..74e2bca
Binary files /dev/null and b/assets/sprite/space/enemy_green.png differ
diff --git a/assets/sprite/space/enemy_red.collider b/assets/sprite/space/enemy_red.collider
new file mode 100644
index 0000000..0d58daf
--- /dev/null
+++ b/assets/sprite/space/enemy_red.collider
@@ -0,0 +1,10 @@
+Poly([
+    (-41.0, -20.0),
+    (-41.0, 29.0),
+    (-20.0, 42.0),
+    (20.0, 42.0),
+    (41.0, 29.0),
+    (41.0, -20.0),
+    (11.0, -42.0),
+    (-11.0, -42.0),
+])
\ No newline at end of file
diff --git a/assets/sprite/space/enemy_red.png b/assets/sprite/space/enemy_red.png
new file mode 100644
index 0000000..a3216d4
Binary files /dev/null and b/assets/sprite/space/enemy_red.png differ
diff --git a/assets/sprite/space/explosion.collider b/assets/sprite/space/explosion.collider
new file mode 100644
index 0000000..b18e633
--- /dev/null
+++ b/assets/sprite/space/explosion.collider
@@ -0,0 +1,14 @@
+Poly([
+    (-32.0, -1.5),
+    (-32.0, 1.5),
+    (-27.0, 26.5),
+    (-2.0, 31.5),
+    (2.0, 31.5),
+    (27.0, 26.5),
+    (32.0, 2.5),
+    (32.0, -1.5),
+    (27.0, -26.5),
+    (2.0, -31.5),
+    (-2.0, -31.5),
+    (-27.0, -26.5),
+])
\ No newline at end of file
diff --git a/assets/sprite/space/explosion.png b/assets/sprite/space/explosion.png
new file mode 100644
index 0000000..c3dce2b
Binary files /dev/null and b/assets/sprite/space/explosion.png differ
diff --git a/assets/sprite/space/laser_blue.collider b/assets/sprite/space/laser_blue.collider
new file mode 100644
index 0000000..72f5bd6
--- /dev/null
+++ b/assets/sprite/space/laser_blue.collider
@@ -0,0 +1,10 @@
+Poly([
+    (-1.5, -27.0),
+    (-4.5, -13.0),
+    (-4.5, 25.0),
+    (-2.5, 27.0),
+    (2.5, 27.0),
+    (4.5, 25.0),
+    (4.5, -13.0),
+    (1.5, -27.0),
+])
\ No newline at end of file
diff --git a/assets/sprite/space/laser_blue.png b/assets/sprite/space/laser_blue.png
new file mode 100644
index 0000000..b76aaf7
Binary files /dev/null and b/assets/sprite/space/laser_blue.png differ
diff --git a/assets/sprite/space/laser_red.collider b/assets/sprite/space/laser_red.collider
new file mode 100644
index 0000000..72f5bd6
--- /dev/null
+++ b/assets/sprite/space/laser_red.collider
@@ -0,0 +1,10 @@
+Poly([
+    (-1.5, -27.0),
+    (-4.5, -13.0),
+    (-4.5, 25.0),
+    (-2.5, 27.0),
+    (2.5, 27.0),
+    (4.5, 25.0),
+    (4.5, -13.0),
+    (1.5, -27.0),
+])
\ No newline at end of file
diff --git a/assets/sprite/space/laser_red.png b/assets/sprite/space/laser_red.png
new file mode 100644
index 0000000..5e467b6
Binary files /dev/null and b/assets/sprite/space/laser_red.png differ
diff --git a/assets/sprite/space/life_blue.collider b/assets/sprite/space/life_blue.collider
new file mode 100644
index 0000000..6016cfc
--- /dev/null
+++ b/assets/sprite/space/life_blue.collider
@@ -0,0 +1,12 @@
+Poly([
+    (-18.5, -4.0),
+    (-18.5, 0.0),
+    (-2.5, 13.0),
+    (1.5, 13.0),
+    (17.5, -0.0),
+    (17.5, -4.0),
+    (11.5, -12.0),
+    (3.5, -13.0),
+    (-4.5, -13.0),
+    (-12.5, -12.0),
+])
\ No newline at end of file
diff --git a/assets/sprite/space/life_blue.png b/assets/sprite/space/life_blue.png
new file mode 100644
index 0000000..17478e6
Binary files /dev/null and b/assets/sprite/space/life_blue.png differ
diff --git a/assets/sprite/space/life_red.collider b/assets/sprite/space/life_red.collider
new file mode 100644
index 0000000..6016cfc
--- /dev/null
+++ b/assets/sprite/space/life_red.collider
@@ -0,0 +1,12 @@
+Poly([
+    (-18.5, -4.0),
+    (-18.5, 0.0),
+    (-2.5, 13.0),
+    (1.5, 13.0),
+    (17.5, -0.0),
+    (17.5, -4.0),
+    (11.5, -12.0),
+    (3.5, -13.0),
+    (-4.5, -13.0),
+    (-12.5, -12.0),
+])
\ No newline at end of file
diff --git a/assets/sprite/space/life_red.png b/assets/sprite/space/life_red.png
new file mode 100644
index 0000000..abada85
Binary files /dev/null and b/assets/sprite/space/life_red.png differ
diff --git a/assets/sprite/space/ship_blue.collider b/assets/sprite/space/ship_blue.collider
new file mode 100644
index 0000000..c50c5ae
--- /dev/null
+++ b/assets/sprite/space/ship_blue.collider
@@ -0,0 +1,10 @@
+Poly([
+    (-49.0, -21.5),
+    (-4.0, 37.5),
+    (4.0, 37.5),
+    (49.0, -22.5),
+    (49.0, -28.5),
+    (14.0, -37.5),
+    (-14.0, -37.5),
+    (-49.0, -29.5),
+])
\ No newline at end of file
diff --git a/assets/sprite/space/ship_blue.png b/assets/sprite/space/ship_blue.png
new file mode 100644
index 0000000..f34faf0
Binary files /dev/null and b/assets/sprite/space/ship_blue.png differ
diff --git a/assets/sprite/space/ship_red.collider b/assets/sprite/space/ship_red.collider
new file mode 100644
index 0000000..c50c5ae
--- /dev/null
+++ b/assets/sprite/space/ship_red.collider
@@ -0,0 +1,10 @@
+Poly([
+    (-49.0, -21.5),
+    (-4.0, 37.5),
+    (4.0, 37.5),
+    (49.0, -22.5),
+    (49.0, -28.5),
+    (14.0, -37.5),
+    (-14.0, -37.5),
+    (-49.0, -29.5),
+])
\ No newline at end of file
diff --git a/assets/sprite/space/ship_red.png b/assets/sprite/space/ship_red.png
new file mode 100644
index 0000000..796e81d
Binary files /dev/null and b/assets/sprite/space/ship_red.png differ
diff --git a/assets/sprite/space/ufo.collider b/assets/sprite/space/ufo.collider
new file mode 100644
index 0000000..1cf78f5
--- /dev/null
+++ b/assets/sprite/space/ufo.collider
@@ -0,0 +1,18 @@
+Poly([
+    (46.0, 0.0),
+    (42.49846, 17.603437),
+    (32.526913, 32.526913),
+    (17.603437, 42.49846),
+    (0.0, 46.0),
+    (-17.603437, 42.49846),
+    (-32.526913, 32.526913),
+    (-42.49846, 17.603437),
+    (-46.0, 0.0),
+    (-42.49846, -17.603437),
+    (-32.526913, -32.526913),
+    (-17.603437, -42.49846),
+    (0.0, -46.0),
+    (17.603437, -42.49846),
+    (32.526913, -32.526913),
+    (42.49846, -17.603437),
+])
\ No newline at end of file
diff --git a/assets/sprite/space/ufo.png b/assets/sprite/space/ufo.png
new file mode 100644
index 0000000..7d441b2
Binary files /dev/null and b/assets/sprite/space/ufo.png differ
diff --git a/examples/scenarios/invaders.rs b/examples/scenarios/invaders.rs
new file mode 100644
index 0000000..0a9fe5b
--- /dev/null
+++ b/examples/scenarios/invaders.rs
@@ -0,0 +1,72 @@
+use rusty_engine::prelude::*;
+
+struct GameState {
+    string_vec: Vec<String>,
+}
+
+fn main() {
+    let mut game = Game::new();
+
+    // create and position the player
+    let player = game.add_sprite("player", "sprite/space/ship_blue.png");
+    player.translation.y = -275.0;
+    player.collision = true;
+
+    for i in 0..5 {
+        place_barrier(
+            &mut game,
+            format!("barrier{}", i),
+            Vec2::new(-624.0 + (i * (160 + 96)) as f32 + 32.0, -230.0),
+        );
+    }
+    // pre-populate laser labels
+    let mut game_state = GameState {
+        string_vec: Vec::new(),
+    };
+    for i in 0..2 {
+        game_state.string_vec.push(format!("laser{}", i));
+    }
+
+    game.add_logic(logic);
+    game.run(game_state);
+}
+
+fn logic(engine: &mut Engine, game_state: &mut GameState) {
+    // Player movement
+    let player = engine.sprites.get_mut("player").unwrap();
+    if let Some(location) = engine.mouse_state.location() {
+        player.translation.x = player
+            .translation
+            .lerp(Vec2::new(location.x, player.translation.y), 0.1)
+            .x;
+    }
+
+    // Lasers!!!
+    let player_translation = player.translation;
+    if engine.mouse_state.just_pressed(MouseButton::Left)
+        || engine.keyboard_state.just_pressed(KeyCode::Space)
+    {
+        if let Some(label) = game_state.string_vec.pop() {
+            let laser =
+                engine.add_sprite(format!("laser{}", label), SpritePreset::RacingBarrierWhite);
+            laser.rotation = UP;
+            laser.scale = 0.25;
+            laser.translation = player_translation;
+        }
+    }
+}
+
+fn place_barrier(engine: &mut Engine, prefix: String, location: Vec2) {
+    for x in 0..5 {
+        for y in 0..3 {
+            if y == 2 && (x == 0 || x == 4) {
+                continue;
+            }
+            let block = engine.add_sprite(
+                format!("{}-{}-{}", prefix, x, y),
+                SpritePreset::RollingBlockSmall,
+            );
+            block.translation = Vec2::new(x as f32 * 32.0, y as f32 * 32.0) + location;
+        }
+    }
+}
diff --git a/scenarios/space_invaders.md b/scenarios/space_invaders.md
index 55fb6ee..cf7c2c9 100644
--- a/scenarios/space_invaders.md
+++ b/scenarios/space_invaders.md
@@ -2,7 +2,7 @@
 
 Evil aliens are invading! Shoot them down.
 
-Similar to the classic [Space Invaders](https://en.wikipedia.org/wiki/Space_Invaders) arcade game, evil car aliens are invading and you must shoot them down!  Cars will be set up in a grid near tho top of the screen. They will march back and forth the screen as they come lower and lower, moving faster the less of them that there are.  You are aboard the only trusty green triangle that can shoot them down!
+Similar to the classic [Space Invaders](https://en.wikipedia.org/wiki/Space_Invaders) arcade game, evil aliens are invading and you must shoot them down!  Aliens will be set up in a grid near the top of the screen. They will march back and forth the screen as they come lower and lower, moving faster the less of them that there are.  You are aboard the only spaceship left that can shoot them down!
 
 ## Common Setup