diff --git a/game.js b/game.js
index 84afc3b..ad25731 100644
--- a/game.js
+++ b/game.js
@@ -6,6 +6,8 @@
 // version: 0.1
 // script:  js
 
+// api:     https://github.com/nesbox/TIC-80/wiki/API
+
 function TIC() {
   gameStages[currentStage]()
 }
@@ -21,9 +23,26 @@ let currentStage = 'mainMenu'
 
 // State
 
-let t = 0
-let x = 96
-let y = 24
+let interface = {
+  arenaX: 7,
+  arenaY: 7,
+  spriteSize: 7,
+  spriteHalfSize: 3,
+}
+
+let arena = {
+  top: 0,
+  right: 225,
+  bottom: 89,
+  left: 0,
+}
+
+let player = {
+  sprite: 1,
+  speed: 1,
+  x: 0,
+  y: 0,
+}
 
 // Main Menu
 
@@ -44,15 +63,49 @@ function mainMenu() {
 // Gameplay
 
 function gameplay() {
-  if (btn(BTN_U)) y--
-  if (btn(BTN_D)) y++
-  if (btn(BTN_L)) x--
-  if (btn(BTN_R)) x++
+  // chackColisions()
 
-  cls(13)
-  spr(1 + (((t % 60) / 30) | 0) * 2, x, y, 14, 3, 0, 0, 2, 2)
-  print('HELLO WORLD!', 84, 84)
-  t++
+  handleMoves()
+  handleMorse()
+
+  // spawn()
+  // moveEnemies()
+
+  drawInterface()
+  drawArena()
+  // drawFX()
+  // drawEnemies()
+  drawPlayer()
+}
+
+function handleMoves() {
+  player.speed = btn(BTN_A) ? 2 : 1
+
+  if (btn(BTN_U)) player.y = Math.max(player.y - player.speed, arena.top)
+  if (btn(BTN_D)) player.y = Math.min(player.y + player.speed, arena.bottom)
+  if (btn(BTN_L)) player.x = Math.max(player.x - player.speed, arena.left)
+  if (btn(BTN_R)) player.x = Math.min(player.x + player.speed, arena.right)
+}
+
+function handleMorse() {
+  player.sprite = btn(BTN_B) ? 17 : 1
+}
+
+function drawInterface() {
+  cls(0)
+}
+
+function drawArena() {
+  map(0, 0, 30, 15)
+}
+
+function drawPlayer() {
+  spr(
+    player.sprite,
+    interface.arenaX + player.x - interface.spriteHalfSize,
+    interface.arenaY + player.y - interface.spriteHalfSize,
+    0,
+  )
 }
 
 // Constants
@@ -63,16 +116,35 @@ const [BTN_U, BTN_D, BTN_L, BTN_R, BTN_A, BTN_B, BTN_X, BTN_Y] = [
 ]
 
 // <TILES>
-// 001:eccccccccc888888caaaaaaaca888888cacccccccacc0ccccacc0ccccacc0ccc
-// 002:ccccceee8888cceeaaaa0cee888a0ceeccca0ccc0cca0c0c0cca0c0c0cca0c0c
-// 003:eccccccccc888888caaaaaaaca888888cacccccccacccccccacc0ccccacc0ccc
-// 004:ccccceee8888cceeaaaa0cee888a0ceeccca0cccccca0c0c0cca0c0c0cca0c0c
-// 017:cacccccccaaaaaaacaaacaaacaaaaccccaaaaaaac8888888cc000cccecccccec
-// 018:ccca00ccaaaa0ccecaaa0ceeaaaa0ceeaaaa0cee8888ccee000cceeecccceeee
-// 019:cacccccccaaaaaaacaaacaaacaaaaccccaaaaaaac8888888cc000cccecccccec
-// 020:ccca00ccaaaa0ccecaaa0ceeaaaa0ceeaaaa0cee8888ccee000cceeecccceeee
+// 001:8800088080000080008880000088800000888000800000808800088000000000
+// 002:0000000000000000000000000000000000000000000001110000012200000123
+// 003:0000000000000000000000000000000000000000111111112222222233333333
+// 004:0000000000000000000000000000000000000000111000002210000032100000
+// 017:0000000008808800080008000008000008000800088088000000000000000000
+// 018:0000012300000123000001230000012300000123000001230000012300000123
+// 019:2111111111111111111111111111111111111111111111111111111111111111
+// 020:3210000032100000321000003210000032100000321000003210000032100000
+// 034:0000012300000122000001110000000000000000000000000000000000000000
+// 035:3333333322222222111111110000000000000000000000000000000000000000
+// 036:3210000022100000111000000000000000000000000000000000000000000000
 // </TILES>
 
+// <MAP>
+// 000:203030303030303030303030303030303030303030303030303030303040000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
+// 001:213131313131313131313131313131313131313131313131313131313141000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
+// 002:213131313131313131313131313131313131313131313131313131313141000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
+// 003:213131313131313131313131313131313131313131313131313131313141000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
+// 004:213131313131313131313131313131313131313131313131313131313141000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
+// 005:213131313131313131313131313131313131313131313131313131313141000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
+// 006:213131313131313131313131313131313131313131313131313131313141000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
+// 007:213131313131313131313131313131313131313131313131313131313141000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
+// 008:213131313131313131313131313131313131313131313131313131313141000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
+// 009:213131313131313131313131313131313131313131313131313131313141000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
+// 010:213131313131313131313131313131313131313131313131313131313141000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
+// 011:213131313131313131313131313131313131313131313131313131313141000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
+// 012:223232323232323232323232323232323232323232323232323232323242000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
+// </MAP>
+
 // <WAVES>
 // 000:00000000ffffffff00000000ffffffff
 // 001:0123456789abcdeffedcba9876543210
@@ -88,5 +160,5 @@ const [BTN_U, BTN_D, BTN_L, BTN_R, BTN_A, BTN_B, BTN_X, BTN_Y] = [
 // </TRACKS>
 
 // <PALETTE>
-// 000:1a1c2c5d275db13e53ef7d57ffcd75a7f07038b76425717929366f3b5dc941a6f673eff7f4f4f494b0c2566c86333c57
+// 000:000000002b36073642586e75657b8383949693a1a1eee8d5b58900cb4b16dc322fd336826c71c4268bd22aa198859900
 // </PALETTE>