I'll create a classic snake game where the snake grows when it eats food and dies when it collides with itself. You'll be able to use the space bar to start/restart the game and arrow keys to control the snake's direction.

This snake game includes:

1. A 20x20 grid where the snake moves

2. Controls:

   • Arrow keys to change direction
   • Space bar to start/pause the game
   • On-screen buttons for mobile users

3. Game features:

   • The snake grows longer when it eats the red food
   • Game ends if the snake hits the wall or itself
   • Score tracking
   • Pause/resume functionality
   • Game over screen with restart option

To play, press the space bar or click the Start button, then use the arrow keys to navigate. The snake will automatically move in the direction you choose. Try to eat as much food as possible without colliding with yourself or the walls!