diff --git a/lib/_buttons.js b/lib/_buttons.js
new file mode 100644
index 0000000..b34d8bb
--- /dev/null
+++ b/lib/_buttons.js
@@ -0,0 +1,185 @@
+const STYLE_DEFAULT = {
+	background: '#eee',
+	color: '#111',
+	border_color: '',
+	border_width: 0,
+	border_radius: 5,
+
+	text_font: 'sans-serif',
+	text_size: 12,
+}
+
+const STYLE_HOVER = {
+	background: '#ccc',
+	color: '#111',
+}
+
+const STYLE_PRESSED = {
+	background: '#aaa',
+	color: '#000',
+}
+
+const STYLE_DISABLED = {
+	background: '#777',
+	color: '#333',
+}
+
+export default class Button {
+
+	#was_pressed = false;
+	#was_hovering = false;
+
+	#props = { };
+	#bounds = { minx: null, miny: null, maxx: null, maxy: null, centerx: null, centery: null };
+	#cstyles = { default: STYLE_DEFAULT, hover: STYLE_HOVER, pressed: STYLE_PRESSED, disabled: STYLE_DISABLED };
+
+	constructor(properties) {
+		this.#props = Object.assign({
+			content: '',
+			x: null, y: null,
+			w: null, h: null,
+			width: null,
+			height: null,
+
+			style_default: STYLE_DEFAULT,
+			style_hover: STYLE_HOVER,
+			style_pressed: STYLE_PRESSED,
+			style_disabled: STYLE_DISABLED,
+
+			on_mouse_enter: null,
+			on_mouse_exit: null,
+			on_press: null,
+			on_release: null,
+
+			align_x: -1,
+			align_y: -1,
+
+			enabled: true,
+		}, properties);
+
+		if ( this.#props.x === null || this.#props.y === null || this.#props.width === null ||  this.#props.height === null )
+			throw( '"x", "y", "width", and "height" must all be defined in the button properties!' );
+
+		Object.seal(this.#props);
+		this.#calculateStyles();
+		this.#calculateBounds();
+	}
+
+	#calculateBounds() {
+		const offset_x = (this.#props.align_x-1)*this.#props.width/2,
+		      offset_y = (this.#props.align_y-1)*this.#props.height/2;
+		
+		this.#bounds.minx = this.#props.x + offset_x,
+		this.#bounds.miny = this.#props.y + offset_y,
+		this.#bounds.maxx = this.#props.x + this.#props.width + offset_x,
+		this.#bounds.maxy = this.#props.y + this.#props.height + offset_y,
+		this.#bounds.centerx = this.#props.x + this.#props.width/2 + offset_x,
+		this.#bounds.centery = this.#props.y + this.#props.height/2 + offset_y;
+	}
+
+	#calculateStyles() {
+		this.#cstyles.default	= Object.assign({}, STYLE_DEFAULT, this.#props.style_default);
+		this.#cstyles.hover		= Object.assign({}, STYLE_DEFAULT, this.#props.style_default, this.#props.style_hover);
+		this.#cstyles.pressed	= Object.assign({}, STYLE_DEFAULT, this.#props.style_default, this.#props.style_pressed);
+		this.#cstyles.disabled	= Object.assign({}, STYLE_DEFAULT, this.#props.style_default, this.#props.style_disabled);
+	}
+
+	update(properties) {
+		try {
+			Object.assign(this.#props, properties); 
+		} catch(e) {console.warn( `Encountered an unrecognized property! Original error: ${e.message}` )}
+		
+		if ( 'x' in properties || 'y' in properties || 'width' in properties || 'height' in properties || 'align_x' in properties || 'align_y' in properties ) 
+			this.#calculateBounds();
+		
+		if ( 'style_default' in properties || 'style_hover' in properties || 'style_pressed' in properties || 'style_disabled' in properties )
+			this.#calculateStyles();
+	}
+
+	/** Shorthand for .update({ x: <value>, y: <value>, ... }) */
+	place( x, y, width=null, height=null ) {
+		this.#props.x = x,
+		this.#props.y = y;
+		if ( width !== null ) this.#props.width = width;
+		if ( height !== null ) this.#props.height = height;
+		this.#calculateBounds();
+	}
+
+	/** Shorthand for .update({ style_<stylename>: <value> }) */
+	style( stylename, style ) {
+		if (!( 'style_'+stylename in this.#props ))
+			throw( `Style name must be either "default", "hover", "pressed", or "disabled". Received "${stylename}" instead.` );
+	
+		this.#props['style_'+stylename] = style;
+		this.#calculateStyles();
+	}
+
+	/** Shorthand for .update({ content: <value> }) */
+	text( content ) { this.#props.content = content }
+
+	/** Shorthand for .update({ enabled: true }) */
+	enable() { this.#props.enabled = true }
+	
+	/** Shorthand for .update({ enabled: false }) */
+	disable() { this.#props.enabled = false }
+
+	/**
+	 * Returns whether the specified point (by default the mouse's position) is hovering over the button.
+	 * @param {number} x (optional) x override.
+	 * @param {number} y (optional) y override.
+	 * @returns {boolean}
+	 */
+	isHovering(x=mouseX, y=mouseY) {
+		return x > this.#bounds.minx && x < this.#bounds.maxx && y > this.#bounds.miny && y < this.#bounds.maxy;
+	}
+
+	/**
+	 * Returns whether the button is currently being pressed.
+	 * @returns {boolean}
+	 */
+	isPressed() {
+		return this.isHovering() && mouseIsPressed;
+	}
+
+	#getCurrentStyle( hovering, pressed ) {
+		if ( !this.#props.enabled ) return this.#cstyles.disabled;
+		if ( pressed ) return this.#cstyles.pressed;
+		if ( hovering ) return this.#cstyles.hover;
+		return this.#cstyles.default; 
+	}
+
+	/**
+	 * Draws the button on the specified canvas, or the global canvas by default.
+	 * @param context (optional) The p5 canvas to draw to.
+	 */
+	draw( context=globalThis ) {
+		const is_hovering = this.isHovering();
+		const is_pressed = mouseIsPressed && (is_hovering || this.#was_pressed);
+		const style = this.#getCurrentStyle( is_hovering, is_pressed );
+		if ( style.background )		context.fill( style.background );
+		else						context.noFill();
+		
+
+		if ( style.border_color && style.border_radius ) {
+			context.stroke( style.border_color );
+			context.strokeWeight( style.border_width );
+		} else context.noStroke();
+
+		context.rect( this.#bounds.minx, this.#bounds.miny, this.#props.width, this.#props.height, style.border_radius );
+		
+		noStroke();
+		context.fill( style.color );
+		context.textAlign( CENTER, CENTER );
+		context.textSize( style.text_size );
+		context.textFont( style.text_font );
+		context.text( this.#props.content, this.#bounds.centerx, this.#bounds.centery );
+	
+		if ( !this.#was_pressed && is_pressed && this.#props.on_press ) this.#props.on_press();
+		if ( this.#was_pressed && !is_pressed && this.#props.on_release ) this.#props.on_release();
+		if ( !this.#was_hovering && is_hovering && this.#props.on_mouse_enter ) this.#props.on_mouse_enter();
+		if ( this.#was_hovering && !is_hovering && this.#props.on_mouse_exit ) this.#props.on_mouse_exit();
+		
+		this.#was_pressed = is_pressed;
+		this.#was_hovering = is_hovering;
+	}
+}
\ No newline at end of file
diff --git a/public/assets/down.png b/public/assets/down.png
new file mode 100644
index 0000000..69a1fc7
Binary files /dev/null and b/public/assets/down.png differ
diff --git a/public/assets/empty.png b/public/assets/empty.png
new file mode 100644
index 0000000..a3869b1
Binary files /dev/null and b/public/assets/empty.png differ
diff --git a/public/assets/left.png b/public/assets/left.png
new file mode 100644
index 0000000..57c8404
Binary files /dev/null and b/public/assets/left.png differ
diff --git a/public/assets/right.png b/public/assets/right.png
new file mode 100644
index 0000000..1b5d98a
Binary files /dev/null and b/public/assets/right.png differ
diff --git a/public/assets/up.png b/public/assets/up.png
new file mode 100644
index 0000000..251da77
Binary files /dev/null and b/public/assets/up.png differ
diff --git a/src/components/Arrow.js b/src/components/Arrow.js
new file mode 100644
index 0000000..089b5d5
--- /dev/null
+++ b/src/components/Arrow.js
@@ -0,0 +1,21 @@
+export class Arrow {
+    static images = {};
+  
+    static preload() {
+      Arrow.images.up = loadImage('/assets/up.png');
+      Arrow.images.down = loadImage('/assets/down.png');
+      Arrow.images.left = loadImage('/assets/left.png');
+      Arrow.images.right = loadImage('/assets/right.png');
+      Arrow.images.empty = loadImage('/assets/empty.png');
+    }
+  
+    constructor(direction) {
+      this.direction = direction;
+      this.image = Arrow.images[direction];
+    }
+  
+    draw(x, y) {
+      image(this.image, x, y, 40, 40);
+    }
+  }
+  
\ No newline at end of file
diff --git a/src/components/ControlPanel.js b/src/components/ControlPanel.js
new file mode 100644
index 0000000..aec2f4f
--- /dev/null
+++ b/src/components/ControlPanel.js
@@ -0,0 +1,74 @@
+import { Arrow } from "./Arrow";
+import { colors } from "../utils/theme";
+
+export class ControlPanel {
+    constructor({ name, x, y, numBoxes }) {
+        this.name = name;
+        this.x = x;
+        this.y = y;
+        this.numBoxes = numBoxes;
+        this.boxWidth = 48;
+        this.boxHeight = 48;
+        this.boxSpacing = 8;
+        this.contents = Array(numBoxes).fill(null);
+        this.empty = new Arrow('empty');
+        this.fontSize = 20;
+        this.gap = this.fontSize;
+    }
+
+    updateBox(index, content) {
+        if (index >= 0 && index < this.numBoxes) {
+            this.contents[index] = content;
+        }
+    }
+
+    draw() {
+        rectMode(CORNER);
+
+        // Label
+        fill(colors.tertiary);
+        noStroke();
+        rect(this.x, this.y, this.getPanelWidth(), this.getTextBoxHeight(), 5);
+        fill(colors.secondary);
+        textAlign(CENTER, CENTER);
+        textSize(this.fontSize);
+        text(this.name, this.x + this.getPanelWidth() / 2, this.y + this.getTextBoxHeight() /2);
+
+        // White panel
+        fill(255);
+        noStroke();
+        rect(this.x, this.y + 24 + this.gap, this.getPanelWidth(), this.boxHeight + this.boxSpacing, 6);
+
+        // Boxes
+        for (let i = 0; i < this.numBoxes; i++) {
+            const bx = this.x + 12 + i * (this.boxWidth + this.boxSpacing);
+            const by = this.y + 24 + this.gap + (this.boxSpacing * 1) / 2;
+            
+            // Draw box
+            // fill(255);
+            // stroke(0);
+            // strokeWeight(1.5);
+            // rect(bx, by, this.boxWidth, this.boxHeight, 4);
+
+            // Draw content if it exists
+            if (this.contents[i]) {
+                if (this.contents[i] instanceof Arrow) {
+                    this.contents[i].draw(bx + this.boxWidth/2 - 20, by + this.boxHeight/2 - 20);
+                }
+            } else {
+                this.empty.draw(bx + this.boxWidth / 2 - 20, by + this.boxHeight / 2 - 20);
+            }
+        }
+        
+
+        
+    }
+
+    getPanelWidth() {
+        return this.numBoxes * (this.boxWidth + this.boxSpacing) + 12;
+    }
+
+    getTextBoxHeight(){
+        return this.fontSize + 16;
+    }
+}
diff --git a/src/main.js b/src/main.js
index 5f4b46d..067481d 100644
--- a/src/main.js
+++ b/src/main.js
@@ -1,4 +1,5 @@
-import { colors } from './theme.js';
+import { colors } from './utils/theme.js';
+import { Arrow } from './components/Arrow.js';
 import StartScene from './scenes/startScene.js';
 import GameScene from './scenes/gameScene.js';
 
@@ -13,7 +14,7 @@ function setup(){
     mgr = new SceneManager();
     mgr.addScene(StartScene);
     mgr.addScene(GameScene);
-    mgr.showScene(StartScene);
+    mgr.showScene(GameScene);
 };
 
 function draw(){
@@ -31,8 +32,13 @@ function mousePressed(){
     mgr.handleEvent('mousePressed');
 };
 
+function preload(){
+    Arrow.preload();
+}
+
 
 window.setup = setup;
 window.draw = draw;
 window.windowResized = windowResized;
 window.mousePressed = mousePressed;
+window.preload = preload;
diff --git a/src/scenes/gameScene.js b/src/scenes/gameScene.js
index 52ca3a1..a8cfe63 100644
--- a/src/scenes/gameScene.js
+++ b/src/scenes/gameScene.js
@@ -1,13 +1,39 @@
-import { colors } from '../theme.js';
-import { draw as drawWorld, groundHeight } from '../world.js';
+import { colors } from '../utils/theme.js';
 import { Cat } from '../cat.js';
+import { buttonS } from '../utils/theme.js';
+import { MyButton } from '../utils/components.js';
+import { Arrow } from '../components/Arrow.js';
+import { ControlPanel } from '../components/controlPanel.js';
+
 
 export default function GameScene() {
   let cat;
+  let runButton;
+  let blocks;
+
   this.name = "GameScene";
 
   this.setup = () => {
     cat = new Cat(width / 6, height - 167.5, 150);
+
+    runButton = new MyButton({
+      x: width / 16 * 15,
+      y: height / 16,
+      text: "run >>",
+      mode: "CENTER",
+      style: buttonS,
+      onPress: () => {
+        console.log("Run button pressed");
+      }
+    });
+
+    blocks = new ControlPanel({
+      name: 'blocks',
+      x: width / 32,
+      y: height / 32,
+      numBoxes: 4
+    });
+
   };
 
   this.draw = () => {
@@ -27,12 +53,15 @@ export default function GameScene() {
 
     // Sprite
     cat.draw();
+    runButton.draw();
+    blocks.draw();
 
   };
 
   this.onResize = () => {
-    if (cat) {
-      cat.setPosition(width / 2, height - 177.5);
-    }
+    cat.setPosition(width / 2, height - 177.5);
+    runButton.setPosition((width / 16) * 15, height / 16);
+    blocks.x = width / 16 - 40;
+    blocks.y = height / 16 + 8;
   }
 }
diff --git a/src/scenes/startScene.js b/src/scenes/startScene.js
index 926d863..63a6e4d 100644
--- a/src/scenes/startScene.js
+++ b/src/scenes/startScene.js
@@ -1,6 +1,6 @@
-import { colors } from '../theme.js';
+import { colors } from '../utils/theme.js';
 import { Cat } from '../cat.js';
-import { drawRect } from '../utils/draw.js';
+import { buttonL } from '../utils/theme.js';
 import GameScene from './gameScene.js';
 
 export default function StartScene() {
@@ -13,7 +13,7 @@ export default function StartScene() {
   };
   let startButton;
 
-  // this.name = "StartScene";
+  this.name = "StartScene";
 
   this.setup = () => {
     cat = new Cat(width / 2, height - 200, 200);
@@ -25,24 +25,24 @@ export default function StartScene() {
     startButton.locate(width/2, height/2 + 50);
 
     // Size
-    startButton.width = 300;
-    startButton.height = 75;
+    startButton.width = buttonL.width;
+    startButton.height = buttonL.height;
 
     // Visual styling
-    startButton.color = colors.tertiary;
-    startButton.stroke = colors.secondary;
-    startButton.strokeWeight = 3;
+    startButton.color = buttonL.color;
+    startButton.stroke = buttonL.stroke;
+    startButton.strokeWeight = buttonL.strokeWeight;
 
     // Text properties
     startButton.text = 'start';
-    startButton.textFont = "Pixelify Sans";
-    startButton.textSize = 32;
-    startButton.textColor = colors.secondary;
+    startButton.textFont = buttonL.textFont;
+    startButton.textSize = buttonL.textSize;
+    startButton.textColor = buttonL.textColor;
 
     startButton.onPress = () => {
       console.log("press");
       this.sceneManager.showScene(GameScene);
-    }
+    };
   };
 
   this.draw = () => {
@@ -89,19 +89,9 @@ export default function StartScene() {
   this.onResize = () => {
     if (cat) {
       cat.setPosition(width / 2, height - 200);
+      startButton.locate(width/2, height/2 + 50);
     }
   }
-  
-
-  this.mousePressed = function (){
-    const x = mouseX;
-    const y = mouseY;
-
-    return;
-
-    this.sceneManager.showScene(GameScene);
-    
-  };
 
   this.exit = function () {
     if (cat) {
diff --git a/src/theme.js b/src/theme.js
deleted file mode 100644
index c51baea..0000000
--- a/src/theme.js
+++ /dev/null
@@ -1,10 +0,0 @@
-const colors = {
-  primary: "#a6d1ff",
-  secondary: "#ff4f64",
-  tertiary: "#fff29d",
-  accent: "#a4e4b6"
-};
-
-export {
-    colors
-}
\ No newline at end of file
diff --git a/src/utils/components.js b/src/utils/components.js
new file mode 100644
index 0000000..0b10163
--- /dev/null
+++ b/src/utils/components.js
@@ -0,0 +1,40 @@
+export class MyButton {
+    constructor({ x, y, text, mode = "CORNER", style = {}, onPress = null }) {
+      this.button = new Clickable();
+  
+      // Apply layout
+      this.button.mode = mode;
+      this.button.locate(x, y);
+      
+      // Apply text
+      this.button.text = text;
+  
+      // Apply styles
+      this.button.width = style.width || 150;
+      this.button.height = style.height || 50;
+      this.button.color = style.color || "#ffffff";
+      this.button.stroke = style.stroke || "#000000";
+      this.button.strokeWeight = style.strokeWeight || 2;
+      this.button.textFont = style.textFont || "sans-serif";
+      this.button.textSize = style.textSize || 16;
+      this.button.textColor = style.textColor || "#000000";
+  
+      // Event
+      if (onPress) {
+        this.button.onPress = onPress;
+      }
+    }
+  
+    draw() {
+      this.button.draw();
+    }
+  
+    setText(newText) {
+      this.button.text = newText;
+    }
+  
+    setPosition(x, y) {
+      this.button.locate(x, y);
+    }
+};
+  
\ No newline at end of file
diff --git a/src/utils/theme.js b/src/utils/theme.js
new file mode 100644
index 0000000..f5cd09d
--- /dev/null
+++ b/src/utils/theme.js
@@ -0,0 +1,32 @@
+const colors = {
+  primary: "#a6d1ff",
+  secondary: "#ff4f64",
+  tertiary: "#fff29d",
+  accent: "#a4e4b6",
+};
+
+const button = {
+  color: colors.tertiary,
+  stroke: colors.secondary,
+  strokeWeight: 3,
+  textFont: "Pixelify Sans",
+  textColor: colors.secondary
+}
+
+const buttonL = {
+  ...button,
+  width: 300,
+  height: 75,
+  textSize: 32,
+};
+
+
+const buttonS = {
+  ...button,
+  width: 100,
+  height: 40,
+  textSize: 20,
+  strokeWeight: 3,
+};
+
+export { colors, buttonL, buttonS };
diff --git a/src/world.js b/src/world.js
index 94bf5af..de41ca5 100644
--- a/src/world.js
+++ b/src/world.js
@@ -1,4 +1,4 @@
-import { colors } from './theme.js';
+import { colors } from './utils/theme.js';
 
 export const groundHeight = 100;