Press SPACE to start / restart.

During the game, SPACE performs a hard drop on the right board (Drop).

Arrow keys control both boards at the same time.

Press S to toggle music.

Bonus: collecting food on the left board (Mamba) fills 1 empty cell in the bottom row on the right board (Drop).

Penalty: clearing a full row on the right board (Drop) shortens the left trail by 2 segments per row.