diff --git a/src/levels/0.ts b/src/levels/0.ts
index 21d4cae..9eae7e1 100644
--- a/src/levels/0.ts
+++ b/src/levels/0.ts
@@ -9,8 +9,8 @@ export const level = 0
 export const title = 'Hello, World!'
 
 export const prescript = `
-${loadPlayer}
-${loadExit}
+${loadPlayer()}
+${loadExit()}
 
 const player = add([sprite('player'), pos(50, 50), area(), 'player'])
 
diff --git a/src/levels/1.ts b/src/levels/1.ts
index 987cea8..8d304b2 100644
--- a/src/levels/1.ts
+++ b/src/levels/1.ts
@@ -9,8 +9,8 @@ export const level = 1
 export const title = 'Comments'
 
 export const prescript = `
-${loadPlayer}
-${loadExit}
+${loadPlayer()}
+${loadExit()}
 
 const player = add([sprite('player'), pos(50, 50), area(), 'player'])
 
diff --git a/src/levels/10.ts b/src/levels/10.ts
index 337def7..de48a6a 100644
--- a/src/levels/10.ts
+++ b/src/levels/10.ts
@@ -9,8 +9,8 @@ export const level = 10
 export const title = 'forEach'
 
 export const prescript = `
-${loadPlayer}
-${loadExit}
+${loadPlayer()}
+${loadExit()}
 loadSprite('spike', 'sprites/spike.png')
 
 const player = add([
diff --git a/src/levels/11.ts b/src/levels/11.ts
index f9303d9..ef2f106 100644
--- a/src/levels/11.ts
+++ b/src/levels/11.ts
@@ -9,8 +9,8 @@ export const level = 11
 export const title = 'Loops'
 
 export const prescript = `
-${loadPlayer}
-${loadExit}
+${loadPlayer()}
+${loadExit()}
 loadSprite('enemy', 'sprites/ghosty.png')
 loadSprite('wall', 'sprites/steel.png')
 
diff --git a/src/levels/12.ts b/src/levels/12.ts
index 3ff2aed..672616d 100644
--- a/src/levels/12.ts
+++ b/src/levels/12.ts
@@ -9,8 +9,8 @@ export const level = 12
 export const title = 'setTimeout'
 
 export const prescript = `
-${loadPlayer}
-${loadExit}
+${loadPlayer()}
+${loadExit()}
 
 const player = add([sprite('player'), pos(50, 50), area(), 'player'])
 
diff --git a/src/levels/13.ts b/src/levels/13.ts
index fc8428e..436a502 100644
--- a/src/levels/13.ts
+++ b/src/levels/13.ts
@@ -9,8 +9,8 @@ export const level = 13
 export const title = 'setInterval'
 
 export const prescript = `
-${loadPlayer}
-${loadExit}
+${loadPlayer()}
+${loadExit()}
 
 const player = add([sprite('player'), pos(50, 80), area(), anchor('center'), 'player'])
 
diff --git a/src/levels/14.ts b/src/levels/14.ts
index 51c9a2f..9cbba53 100644
--- a/src/levels/14.ts
+++ b/src/levels/14.ts
@@ -9,8 +9,8 @@ export const level = 14
 export const title = 'Timer'
 
 export const prescript = `
-${loadPlayer}
-${loadExit}
+${loadPlayer()}
+${loadExit()}
 loadSprite('key', 'sprites/key.png')
 
 const player = add([sprite('player'), pos(center()), area(), 'player'])
diff --git a/src/levels/15.ts b/src/levels/15.ts
index a91c42b..33c2be8 100644
--- a/src/levels/15.ts
+++ b/src/levels/15.ts
@@ -11,8 +11,8 @@ export const title = 'JSON.stringify'
 const password = JSON.stringify({ level, year: new Date().getFullYear() })
 
 export const prescript = `
-${loadPlayer}
-${loadExit}
+${loadPlayer()}
+${loadExit()}
 loadSprite('key', 'sprites/key.png')
 
 const player = add([sprite('player'), pos(100, 100), area(), 'player'])
diff --git a/src/levels/2.ts b/src/levels/2.ts
index 8e75471..56e9099 100644
--- a/src/levels/2.ts
+++ b/src/levels/2.ts
@@ -9,8 +9,8 @@ export const level = 2
 export const title = 'Strings'
 
 export const prescript = `
-${loadPlayer}
-${loadExit}
+${loadPlayer()}
+${loadExit()}
 
 const player = add([sprite('player'), pos(center()), area(), 'player'])
 
diff --git a/src/levels/3.ts b/src/levels/3.ts
index 0b59d77..98ec752 100644
--- a/src/levels/3.ts
+++ b/src/levels/3.ts
@@ -9,8 +9,8 @@ export const level = 3
 export const title = 'Numbers'
 
 export const prescript = `
-${loadPlayer}
-${loadExit}
+${loadPlayer()}
+${loadExit()}
 
 const player = add([sprite('player'), pos(500, 500), area(), 'player'])
 
diff --git a/src/levels/4.ts b/src/levels/4.ts
index 40925f3..27defe7 100644
--- a/src/levels/4.ts
+++ b/src/levels/4.ts
@@ -9,8 +9,8 @@ export const level = 4
 export const title = 'Booleans'
 
 export const prescript = `
-${loadPlayer}
-${loadExit}
+${loadPlayer()}
+${loadExit()}
 
 const player = add([sprite('player'), pos(center()), area(), 'player'])
 
diff --git a/src/levels/5.ts b/src/levels/5.ts
index 51808b2..bda942d 100644
--- a/src/levels/5.ts
+++ b/src/levels/5.ts
@@ -9,9 +9,9 @@ export const level = 5
 export const title = 'Arrays'
 
 export const prescript = `
-${loadPlayer}
+${loadPlayer()}
 loadSprite('wall', 'sprites/steel.png')
-${loadExit}
+${loadExit()}
 
 const player = add([sprite('player'), pos(center()), area(), body(), 'player'])
 add([sprite('exit'), pos(500, 500), area(), 'exit'])
diff --git a/src/levels/6.ts b/src/levels/6.ts
index 2610b7d..e72f471 100644
--- a/src/levels/6.ts
+++ b/src/levels/6.ts
@@ -4,8 +4,8 @@ export const level = 6
 export const title = 'Objects'
 
 export const prescript = `
-${loadPlayer}
-${loadExit}
+${loadPlayer()}
+${loadExit()}
 
 const player = add([sprite('player'), pos(0, 36), area(), body(), 'player'])
 add([sprite('exit'), pos(516, 516), area(), 'exit'])
diff --git a/src/levels/7.ts b/src/levels/7.ts
index e73b1f2..171e8ee 100644
--- a/src/levels/7.ts
+++ b/src/levels/7.ts
@@ -4,8 +4,8 @@ export const level = 7
 export const title = 'Functions'
 
 export const prescript = `
-${loadPlayer}
-${loadExit}
+${loadPlayer()}
+${loadExit()}
 
 add([sprite('player'), pos(0, 36), area(), 'player'])
 add([sprite('exit'), pos(center().x, 500), area(), 'exit'])
diff --git a/src/levels/8.ts b/src/levels/8.ts
index b9fe3a4..48c4a1e 100644
--- a/src/levels/8.ts
+++ b/src/levels/8.ts
@@ -11,8 +11,8 @@ export const title = 'Variables'
 const password = (new Date().getFullYear() + level) * 31337
 
 export const prescript = `
-${loadPlayer}
-${loadExit}
+${loadPlayer()}
+${loadExit()}
 loadSprite('key', 'sprites/key.png')
 
 const player = add([sprite('player'), pos(100, 100), area(), 'player'])
diff --git a/src/levels/9.ts b/src/levels/9.ts
index 058c2fc..cb717e2 100644
--- a/src/levels/9.ts
+++ b/src/levels/9.ts
@@ -13,8 +13,8 @@ const password = Array.from(Array(42).keys())
   .join('')
 
 export const prescript = `
-${loadPlayer}
-${loadExit}
+${loadPlayer()}
+${loadExit()}
 loadSprite('key', 'sprites/key.png')
 
 const player = add([sprite('player'), pos(100, 100), area(), 'player'])
diff --git a/src/templates/layouts.ts b/src/templates/layouts.ts
index 05252cf..a53ed01 100644
--- a/src/templates/layouts.ts
+++ b/src/templates/layouts.ts
@@ -1,5 +1,4 @@
-export function wrapGame(code: string) {
-  return `
+export const wrapGame = (code: string) => `
 <!DOCTYPE html>
 <html>
 <head>
@@ -37,4 +36,3 @@ ${code}
 </body>
 </html>
 `
-}
diff --git a/src/templates/sprites.ts b/src/templates/sprites.ts
index e5e7d80..719076e 100644
--- a/src/templates/sprites.ts
+++ b/src/templates/sprites.ts
@@ -1,3 +1,3 @@
-export const loadExit = `loadSprite('exit', 'sprites/door.png')`
+export const loadExit = () => `loadSprite('exit', 'sprites/door.png')`
 
-export const loadPlayer = `loadSprite('player', 'sprites/bean.png')`
+export const loadPlayer = () => `loadSprite('player', 'sprites/bean.png')`