1. Input your name.
2. Click Start Game.
3. Steer with arrow keys / WASD on desktop, or swipe on touch screens. Eat to grow — don't bite yourself.

If you want to rewind:

1. Click rewind button.
2. Select how many seconds you want to rewind by sliding the range slider.
3. The game resumes when you press rewind again. Cancel restores the pre-rewind run.