- Z
- Confirm on title, pause, and completion screens.
- X
- Rewind one move; breaks the current room’s Prism Seal.
- C
- Hold to reset the current room; also breaks its Prism Seal.
- DPAD
- Move one tile. Walk into a block to push it.
- ENTER
- Pause and view room controls.
Gamepads work too. Click the screen first so the browser lets the sound play.