- Z
- Hold to charge shot power; release to strike. In ball-in-hand, press to place the cue ball.
- X
- Cancel a charged shot before release.
- ENTER
- Pause / resume.
- UP/DOWN
- Fine-tune cue aim. During ball-in-hand, move cue ball vertically.
- LEFT/RIGHT
- Rotate cue aim left/right. During ball-in-hand, move cue ball horizontally.
Gamepads work too. Click the screen first so the browser lets the sound play.