Take the numbers in the field by directing your
snake with the aspecified keys. Try to avoid collisions with the
other player and (from level 2) the bricks.
| Player 1 | Player 2 | |
| Move up | w | arrow up |
| Move down | s | arrow down |
| Move left | a | arrow left |
| Move right | d | arrow right |
| Pause | P | |