diff --git a/Cargo.lock b/Cargo.lock
index ab6d60e..011d4f2 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -40,6 +40,12 @@ dependencies = [
  "log",
 ]
 
+[[package]]
+name = "anes"
+version = "0.1.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4b46cbb362ab8752921c97e041f5e366ee6297bd428a31275b9fcf1e380f7299"
+
 [[package]]
 name = "anstream"
 version = "0.6.21"
@@ -110,6 +116,7 @@ name = "ayin-lang"
 version = "0.1.0"
 dependencies = [
  "chumsky",
+ "criterion",
  "env_logger",
  "gamepads",
  "hotwatch",
@@ -150,6 +157,12 @@ version = "1.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1fd0f2584146f6f2ef48085050886acf353beff7305ebd1ae69500e27c67f64b"
 
+[[package]]
+name = "cast"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "37b2a672a2cb129a2e41c10b1224bb368f9f37a2b16b612598138befd7b37eb5"
+
 [[package]]
 name = "cc"
 version = "1.2.49"
@@ -186,6 +199,58 @@ dependencies = [
  "unicode-segmentation",
 ]
 
+[[package]]
+name = "ciborium"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "42e69ffd6f0917f5c029256a24d0161db17cea3997d185db0d35926308770f0e"
+dependencies = [
+ "ciborium-io",
+ "ciborium-ll",
+ "serde",
+]
+
+[[package]]
+name = "ciborium-io"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "05afea1e0a06c9be33d539b876f1ce3692f4afea2cb41f740e7743225ed1c757"
+
+[[package]]
+name = "ciborium-ll"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "57663b653d948a338bfb3eeba9bb2fd5fcfaecb9e199e87e1eda4d9e8b240fd9"
+dependencies = [
+ "ciborium-io",
+ "half",
+]
+
+[[package]]
+name = "clap"
+version = "4.5.53"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c9e340e012a1bf4935f5282ed1436d1489548e8f72308207ea5df0e23d2d03f8"
+dependencies = [
+ "clap_builder",
+]
+
+[[package]]
+name = "clap_builder"
+version = "4.5.53"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d76b5d13eaa18c901fd2f7fca939fefe3a0727a953561fefdf3b2922b8569d00"
+dependencies = [
+ "anstyle",
+ "clap_lex",
+]
+
+[[package]]
+name = "clap_lex"
+version = "0.7.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a1d728cc89cf3aee9ff92b05e62b19ee65a02b5702cff7d5a377e32c6ae29d8d"
+
 [[package]]
 name = "color_quant"
 version = "1.1.0"
@@ -235,6 +300,39 @@ dependencies = [
  "cfg-if",
 ]
 
+[[package]]
+name = "criterion"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e1c047a62b0cc3e145fa84415a3191f628e980b194c2755aa12300a4e6cbd928"
+dependencies = [
+ "anes",
+ "cast",
+ "ciborium",
+ "clap",
+ "criterion-plot",
+ "itertools",
+ "num-traits",
+ "oorandom",
+ "plotters",
+ "rayon",
+ "regex",
+ "serde",
+ "serde_json",
+ "tinytemplate",
+ "walkdir",
+]
+
+[[package]]
+name = "criterion-plot"
+version = "0.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9b1bcc0dc7dfae599d84ad0b1a55f80cde8af3725da8313b528da95ef783e338"
+dependencies = [
+ "cast",
+ "itertools",
+]
+
 [[package]]
 name = "crossbeam-channel"
 version = "0.5.15"
@@ -244,12 +342,43 @@ dependencies = [
  "crossbeam-utils",
 ]
 
+[[package]]
+name = "crossbeam-deque"
+version = "0.8.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9dd111b7b7f7d55b72c0a6ae361660ee5853c9af73f70c3c2ef6858b950e2e51"
+dependencies = [
+ "crossbeam-epoch",
+ "crossbeam-utils",
+]
+
+[[package]]
+name = "crossbeam-epoch"
+version = "0.9.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5b82ac4a3c2ca9c3460964f020e1402edd5753411d7737aa39c3714ad1b5420e"
+dependencies = [
+ "crossbeam-utils",
+]
+
 [[package]]
 name = "crossbeam-utils"
 version = "0.8.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d0a5c400df2834b80a4c3327b3aad3a4c4cd4de0629063962b03235697506a28"
 
+[[package]]
+name = "crunchy"
+version = "0.2.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "460fbee9c2c2f33933d720630a6a0bac33ba7053db5344fac858d4b8952d77d5"
+
+[[package]]
+name = "either"
+version = "1.15.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "48c757948c5ede0e46177b7add2e67155f70e33c07fea8284df6576da70b3719"
+
 [[package]]
 name = "encode_unicode"
 version = "1.0.0"
@@ -416,6 +545,17 @@ version = "0.27.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9e05e7e6723e3455f4818c7b26e855439f7546cf617ef669d1adedb8669e5cb9"
 
+[[package]]
+name = "half"
+version = "2.7.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6ea2d84b969582b4b1864a92dc5d27cd2b77b622a8d79306834f1be5ba20d84b"
+dependencies = [
+ "cfg-if",
+ "crunchy",
+ "zerocopy",
+]
+
 [[package]]
 name = "hashbrown"
 version = "0.15.5"
@@ -509,6 +649,21 @@ version = "1.70.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a6cb138bb79a146c1bd460005623e142ef0181e3d0219cb493e02f7d08a35695"
 
+[[package]]
+name = "itertools"
+version = "0.13.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "413ee7dfc52ee1a4949ceeb7dbc8a33f2d6c088194d9f922fb8318faf1f01186"
+dependencies = [
+ "either",
+]
+
+[[package]]
+name = "itoa"
+version = "1.0.16"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7ee5b5339afb4c41626dde77b7a611bd4f2c202b897852b4bcf5d03eddc61010"
+
 [[package]]
 name = "jiff"
 version = "0.2.16"
@@ -778,6 +933,12 @@ version = "1.70.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "384b8ab6d37215f3c5301a95a4accb5d64aa607f1fcb26a11b5303878451b4fe"
 
+[[package]]
+name = "oorandom"
+version = "11.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d6790f58c7ff633d8771f42965289203411a5e5c68388703c06e14f24770b41e"
+
 [[package]]
 name = "parking_lot"
 version = "0.12.5"
@@ -807,6 +968,34 @@ version = "0.3.32"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7edddbd0b52d732b21ad9a5fab5c704c14cd949e5e9a1ec5929a24fded1b904c"
 
+[[package]]
+name = "plotters"
+version = "0.3.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5aeb6f403d7a4911efb1e33402027fc44f29b5bf6def3effcc22d7bb75f2b747"
+dependencies = [
+ "num-traits",
+ "plotters-backend",
+ "plotters-svg",
+ "wasm-bindgen",
+ "web-sys",
+]
+
+[[package]]
+name = "plotters-backend"
+version = "0.3.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "df42e13c12958a16b3f7f4386b9ab1f3e7933914ecea48da7139435263a4172a"
+
+[[package]]
+name = "plotters-svg"
+version = "0.3.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "51bae2ac328883f7acdfea3d66a7c35751187f870bc81f94563733a154d7a670"
+dependencies = [
+ "plotters-backend",
+]
+
 [[package]]
 name = "png"
 version = "0.17.16"
@@ -869,6 +1058,26 @@ dependencies = [
  "proc-macro2",
 ]
 
+[[package]]
+name = "rayon"
+version = "1.11.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "368f01d005bf8fd9b1206fb6fa653e6c4a81ceb1466406b81792d87c5677a58f"
+dependencies = [
+ "either",
+ "rayon-core",
+]
+
+[[package]]
+name = "rayon-core"
+version = "1.13.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "22e18b0f0062d30d4230b2e85ff77fdfe4326feb054b9783a3460d8435c8ab91"
+dependencies = [
+ "crossbeam-deque",
+ "crossbeam-utils",
+]
+
 [[package]]
 name = "redox_syscall"
 version = "0.5.18"
@@ -939,6 +1148,12 @@ version = "1.0.22"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b39cdef0fa800fc44525c84ccb54a029961a8215f9619753635a9c0d2538d46d"
 
+[[package]]
+name = "ryu"
+version = "1.0.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "62049b2877bf12821e8f9ad256ee38fdc31db7387ec2d3b3f403024de2034aea"
+
 [[package]]
 name = "same-file"
 version = "1.0.6"
@@ -984,6 +1199,19 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "serde_json"
+version = "1.0.145"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "402a6f66d8c709116cf22f558eab210f5a50187f702eb4d7e5ef38d9a7f1c79c"
+dependencies = [
+ "itoa",
+ "memchr",
+ "ryu",
+ "serde",
+ "serde_core",
+]
+
 [[package]]
 name = "shlex"
 version = "1.3.0"
@@ -1052,6 +1280,16 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "tinytemplate"
+version = "1.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "be4d6b5f19ff7664e8c98d03e2139cb510db9b0a60b55f8e8709b689d939b6bc"
+dependencies = [
+ "serde",
+ "serde_json",
+]
+
 [[package]]
 name = "ttf-parser"
 version = "0.21.1"
@@ -1485,3 +1723,23 @@ name = "windows_x86_64_msvc"
 version = "0.53.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d6bbff5f0aada427a1e5a6da5f1f98158182f26556f345ac9e04d36d0ebed650"
+
+[[package]]
+name = "zerocopy"
+version = "0.8.31"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fd74ec98b9250adb3ca554bdde269adf631549f51d8a8f8f0a10b50f1cb298c3"
+dependencies = [
+ "zerocopy-derive",
+]
+
+[[package]]
+name = "zerocopy-derive"
+version = "0.8.31"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d8a8d209fdf45cf5138cbb5a506f6b52522a25afccc534d1475dad8e31105c6a"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
diff --git a/Cargo.toml b/Cargo.toml
index 68c59b7..b5f52b8 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -16,6 +16,10 @@ path = "src/lib.rs"
 name = "ayin"
 path = "src/main.rs"
 
+[[bench]]
+name = "benchmark"
+harness = false
+
 [dependencies]
 thiserror = "1"
 env_logger = "0.11.8"
@@ -28,6 +32,7 @@ hotwatch = "0.5.0"
 
 [dev-dependencies]
 insta = "1.44.3"
+criterion = { version = "0.7" }
 
 [workspace.lints.clippy]
 all = { level = "warn", priority = -1 }
diff --git a/Makefile b/Makefile
index acf6b17..598e494 100644
--- a/Makefile
+++ b/Makefile
@@ -12,7 +12,8 @@ test:
 
 .PHONY: run
 run:
-	RUST_BACKTRACE=1 cargo run -- colorgame.ayin
+	# RUST_BACKTRACE=1 cargo run -- game.ayin
+	cargo run -- game.ayin
 
 .PHONY: review
 review:
diff --git a/benches/benchmark.rs b/benches/benchmark.rs
new file mode 100644
index 0000000..2ed9b78
--- /dev/null
+++ b/benches/benchmark.rs
@@ -0,0 +1,208 @@
+use criterion::{Criterion, criterion_group, criterion_main};
+use std::hint::black_box;
+
+fn criterion_benchmark(c: &mut Criterion) {
+    c.bench_function("minimal", |b| {
+        b.iter(|| {
+            let program = "
+let main = fn() {
+  1
+}
+";
+            ayin::run_main(black_box(program))
+        })
+    });
+
+    c.bench_function("game", |b| {
+        b.iter(|| {
+            let program = "
+let main = fn() {
+  setup()
+}
+
+let screen_size = 360
+let shoot_timer = 60
+let dim = {
+  .w: 16,
+  .h: 16,
+}
+let bullet_dim = {
+  .w: dim.w / 4,
+  .h: dim.h / 4,
+}
+
+let migrate = fn(state) {
+	return setup();
+    state
+}
+
+
+let setup = fn() {
+  return {
+    .player: {
+	  .pos: {
+	    .x: (screen_size - dim.w) - dim.w,
+		.y: dim.h,
+	  },
+      .speed: 360,
+	},
+	.enemy: {
+	  .pos: {
+	    .x: dim.w,
+		.y: dim.h,
+	  },
+      .speed: 20,
+      .timer: shoot_timer,
+	},
+	.bullets: {
+	  .pos: {
+	    .x: dim.w,
+		.y: dim.h,
+	  },
+	  .movement: {
+	    .x: 0,
+	    .y: 0,
+	  },
+      .speed: 180,
+	},
+	.timer: 0,
+	.status: \"ongoing\",
+  };
+}
+
+let move_player = fn(state, input) {
+  let delta = get_frame_time();
+
+  let dpad_x = if input.gamepad1.dpad.right { 1 } else { 0 } + if input.gamepad1.dpad.left { -1 } else { 0 };
+  let dpad_y = if input.gamepad1.dpad.down  { 1 } else { 0 } + if input.gamepad1.dpad.up   { -1 } else { 0 };
+
+  let movement = {
+    .x: input.gamepad1.sticks.left.x + dpad_x,
+    .y: input.gamepad1.sticks.left.y + dpad_y,
+  };
+
+  state.player.pos.x =
+    max(0,
+      min( state.player.pos.x + (delta * state.player.speed * movement.x)
+	     , screen_size - dim.w
+	     )
+	);
+  state.player.pos.y =
+    max(0,
+      min( state.player.pos.y + (delta * state.player.speed * movement.y)
+	     , screen_size - dim.w
+	     )
+    );
+}
+
+let update = fn(state, input) {
+  let delta = get_frame_time();
+  state.timer = state.timer + delta;
+
+  move_player(state, input);
+
+  let enemy_movement = {
+    .x: if abs(state.enemy.pos.x - state.player.pos.x) < 5 { 0 } else { if state.enemy.pos.x < state.player.pos.x { 1 } else { -1 } },
+    .y: if abs(state.enemy.pos.y - state.player.pos.y) < 5 { 0 } else { if state.enemy.pos.y < state.player.pos.y { 1 } else { -1 } },
+  };
+
+  state.enemy.pos.x =
+    max(0,
+      min( state.enemy.pos.x + (delta * state.enemy.speed * enemy_movement.x)
+	     , screen_size - dim.w
+	     )
+	);
+  state.enemy.pos.y =
+    max(0,
+      min( state.enemy.pos.y + (delta * state.enemy.speed * enemy_movement.y)
+	     , screen_size - dim.w
+	     )
+    );
+
+  state.enemy.timer = state.enemy.timer - 1;
+  if state.enemy.timer == 0 {
+     state.enemy.timer = shoot_timer;
+	 state.bullets.pos.x = state.enemy.pos.x + (dim.w * enemy_movement.x);
+	 state.bullets.pos.y = state.enemy.pos.y + (dim.h * enemy_movement.y);
+	 state.bullets.movement.x = enemy_movement.x;
+	 state.bullets.movement.y = enemy_movement.y;
+  };
+
+  state.bullets.pos.x =
+      state.bullets.pos.x + (delta * state.bullets.speed * state.bullets.movement.x);
+  state.bullets.pos.y =
+      state.bullets.pos.y + (delta * state.bullets.speed * state.bullets.movement.y);
+
+  return state;
+}
+
+let draw = fn(state) {
+  frame_clear(0, 0, 0);
+  let player_rect = {
+    .x: state.player.pos.x,
+    .y: state.player.pos.y,
+    .w: dim.w,
+    .h: dim.h,
+  };
+  let color = { .r: 155, .g: 205, .b: 255 };
+  draw_rectangle(player_rect, color);
+
+  let enemy_rect = {
+    .x: state.enemy.pos.x,
+    .y: state.enemy.pos.y,
+    .w: dim.w,
+    .h: dim.h,
+  };
+
+  let color = { .r: 255, .g: 155, .b: 255 };
+  draw_rectangle(enemy_rect, color);
+
+  let bullet_rect = {
+    .x: state.bullets.pos.x,
+    .y: state.bullets.pos.y,
+    .w: bullet_dim.w,
+    .h: bullet_dim.h,
+  };
+
+  let color = { .r: 255, .g: 255, .b: 255 };
+  draw_rectangle(bullet_rect, color);
+
+  draw_text(\"RUN!!!\", 20, 50, 50, { .r: 255, .g: 55, .b: 55 });
+}
+
+let min = fn(a,b) {
+  if a < b {
+    a
+  } else {
+    b
+  }
+}
+
+let max = fn(a,b) {
+  if a < b {
+    b
+  } else {
+    a
+  }
+}
+
+let abs = fn(a) {
+	if a >= 0 { a } else { 0 - a }
+}
+
+let is_touching = fn(rect1, rect2) {
+	if ((rect1.x < rect2.x) && ((rect1.x + rect1.w) > rect2.x))
+	&& ((rect1.y < rect2.y) && ((rect1.y + rect1.h) > rect2.y)) {
+	  true
+	} else {
+      false
+	}
+}
+";
+            ayin::run_main(black_box(program))
+        })
+    });
+}
+
+criterion_group!(benches, criterion_benchmark);
+criterion_main!(benches);
diff --git a/game.ayin b/game.ayin
new file mode 100644
index 0000000..c63a095
--- /dev/null
+++ b/game.ayin
@@ -0,0 +1,178 @@
+let screen_size = 360
+let shoot_timer = 60
+let dim = {
+  .w: 16,
+  .h: 16,
+}
+let bullet_dim = {
+  .w: dim.w / 4,
+  .h: dim.h / 4,
+}
+
+let migrate = fn(state) {
+	return setup();
+    state
+}
+
+
+let setup = fn() {
+  return {
+    .player: {
+	  .pos: {
+	    .x: (screen_size - dim.w) - dim.w,
+		.y: dim.h,
+	  },
+      .speed: 360,
+	},
+	.enemy: {
+	  .pos: {
+	    .x: dim.w,
+		.y: dim.h,
+	  },
+      .speed: 20,
+      .timer: shoot_timer,
+	},
+	.bullets: {
+	  .pos: {
+	    .x: dim.w,
+		.y: dim.h,
+	  },
+	  .movement: {
+	    .x: 0,
+	    .y: 0,
+	  },
+      .speed: 180,
+	},
+	.timer: 0,
+	.status: "ongoing",
+  };
+}
+
+let move_player = fn(state, input) {
+  let delta = get_frame_time();
+
+  let dpad_x = if input.gamepad1.dpad.right { 1 } else { 0 } + if input.gamepad1.dpad.left { -1 } else { 0 };
+  let dpad_y = if input.gamepad1.dpad.down  { 1 } else { 0 } + if input.gamepad1.dpad.up   { -1 } else { 0 };
+
+  let movement = {
+    .x: input.gamepad1.sticks.left.x + dpad_x,
+    .y: input.gamepad1.sticks.left.y + dpad_y,
+  };
+
+  state.player.pos.x =
+    max(0,
+      min( state.player.pos.x + (delta * state.player.speed * movement.x)
+	     , screen_size - dim.w
+	     )
+	);
+  state.player.pos.y =
+    max(0,
+      min( state.player.pos.y + (delta * state.player.speed * movement.y)
+	     , screen_size - dim.w
+	     )
+    );
+}
+
+let update = fn(state, input) {
+  let delta = get_frame_time();
+  state.timer = state.timer + delta;
+
+  move_player(state, input);
+
+  let enemy_movement = {
+    .x: if abs(state.enemy.pos.x - state.player.pos.x) < 5 { 0 } else { if state.enemy.pos.x < state.player.pos.x { 1 } else { -1 } },
+    .y: if abs(state.enemy.pos.y - state.player.pos.y) < 5 { 0 } else { if state.enemy.pos.y < state.player.pos.y { 1 } else { -1 } },
+  };
+
+  state.enemy.pos.x =
+    max(0,
+      min( state.enemy.pos.x + (delta * state.enemy.speed * enemy_movement.x)
+	     , screen_size - dim.w
+	     )
+	);
+  state.enemy.pos.y =
+    max(0,
+      min( state.enemy.pos.y + (delta * state.enemy.speed * enemy_movement.y)
+	     , screen_size - dim.w
+	     )
+    );
+
+  state.enemy.timer = state.enemy.timer - 1;
+  if state.enemy.timer == 0 {
+     state.enemy.timer = shoot_timer;
+	 state.bullets.pos.x = state.enemy.pos.x + (dim.w * enemy_movement.x);
+	 state.bullets.pos.y = state.enemy.pos.y + (dim.h * enemy_movement.y);
+	 state.bullets.movement.x = enemy_movement.x;
+	 state.bullets.movement.y = enemy_movement.y;
+  };
+
+  state.bullets.pos.x =
+      state.bullets.pos.x + (delta * state.bullets.speed * state.bullets.movement.x);
+  state.bullets.pos.y =
+      state.bullets.pos.y + (delta * state.bullets.speed * state.bullets.movement.y);
+
+  return state;
+}
+
+let draw = fn(state) {
+  frame_clear(0, 0, 0);
+  let player_rect = {
+    .x: state.player.pos.x,
+    .y: state.player.pos.y,
+    .w: dim.w,
+    .h: dim.h,
+  };
+  let color = { .r: 155, .g: 205, .b: 255 };
+  draw_rectangle(player_rect, color);
+
+  let enemy_rect = {
+    .x: state.enemy.pos.x,
+    .y: state.enemy.pos.y,
+    .w: dim.w,
+    .h: dim.h,
+  };
+
+  let color = { .r: 255, .g: 155, .b: 255 };
+  draw_rectangle(enemy_rect, color);
+
+  let bullet_rect = {
+    .x: state.bullets.pos.x,
+    .y: state.bullets.pos.y,
+    .w: bullet_dim.w,
+    .h: bullet_dim.h,
+  };
+
+  let color = { .r: 255, .g: 255, .b: 255 };
+  draw_rectangle(bullet_rect, color);
+
+  draw_text("RUN!!!", 20, 50, 50, { .r: 255, .g: 55, .b: 55 });
+}
+
+let min = fn(a,b) {
+  if a < b {
+    a
+  } else {
+    b
+  }
+}
+
+let max = fn(a,b) {
+  if a < b {
+    b
+  } else {
+    a
+  }
+}
+
+let abs = fn(a) {
+	if a >= 0 { a } else { 0 - a }
+}
+
+let is_touching = fn(rect1, rect2) {
+	if ((rect1.x < rect2.x) && ((rect1.x + rect1.w) > rect2.x))
+	&& ((rect1.y < rect2.y) && ((rect1.y + rect1.h) > rect2.y)) {
+	  true
+	} else {
+      false
+	}
+}
diff --git a/src/interpret/types.rs b/src/interpret/types.rs
index b6f80f6..e9a83ee 100644
--- a/src/interpret/types.rs
+++ b/src/interpret/types.rs
@@ -56,7 +56,11 @@ impl std::fmt::Display for Error {
                 )
             }
             Error::DuplicateNames(a, b) => write!(f, "Duplicate names: {a:?}\n{b}"),
-            Error::NameNotFound(a, e, b) => write!(f, "Name not found: {a:?} in {e:#?}\n{b}"),
+            Error::NameNotFound(a, e, b) => write!(
+                f,
+                "Name not found: {a:?} in {:#?}\n{b}",
+                e.env.keys().collect::<Vec<_>>()
+            ),
             Error::FieldNotFound(a, b) => write!(f, "Field not found: {a:?}\n{b}"),
             Error::EnvNotFound(a, b) => write!(f, "Env not found: {a:?}\n{b}"),
             Error::LastStatementNotAnExpr(a) => {
diff --git a/src/main.rs b/src/main.rs
index 85fe1e3..7585145 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,5 +1,8 @@
 use ayin::runtime::*;
-use hotwatch;
+use hotwatch::{
+    self,
+    notify::event::{DataChange, ModifyKind},
+};
 use macroquad::prelude::*;
 use std::sync::{Arc, RwLock};
 
@@ -30,7 +33,7 @@ async fn main() {
     let mut hotwatch = hotwatch::Hotwatch::new().expect("hotwatch failed to initialize!");
     hotwatch
         .watch(file.clone(), move |event: hotwatch::Event| {
-            if let hotwatch::EventKind::Modify(_) = event.kind {
+            if let hotwatch::EventKind::Modify(ModifyKind::Data(DataChange::Content)) = event.kind {
                 match std::fs::read_to_string(file.clone()) {
                     Err(err) => println!("Error: {err:#?}"),
                     Ok(txt) => match ayin::parser::parse_file(txt) {
diff --git a/src/runtime/runtime.rs b/src/runtime/runtime.rs
index 45c2110..ec22aad 100644
--- a/src/runtime/runtime.rs
+++ b/src/runtime/runtime.rs
@@ -171,17 +171,17 @@ pub fn fetch_events(state: &mut State) -> Input {
 pub fn draw(state: &mut State) {
     clear_background(Color::from_hex(0x081829));
 
-    set_default_camera();
-    let (w, h) = (SCREEN_WIDTH as f32 / 2., 400.0);
+    // set_default_camera();
+    // let (w, h) = (SCREEN_WIDTH as f32 / 2., 400.0);
 
-    set_camera(&Camera2D {
-        zoom: vec2(2.2 / w, 2.2 / h),
-        target: Vec2 { x: w / 2.2, y: 0.0 },
-        viewport: Some((0, 0, w as i32, h as i32)),
-        ..Default::default()
-    });
+    // set_camera(&Camera2D {
+    //     zoom: vec2(2.2 / w, 2.2 / h),
+    //     target: Vec2 { x: w / 2.2, y: 0.0 },
+    //     viewport: Some((0, 0, w as i32, h as i32)),
+    //     ..Default::default()
+    // });
 
-    set_default_camera();
+    // set_default_camera();
 
     match interpret::interpret(
         &mut state.state,