Maggot by Peter Karlsson is a mini game for the Commodore 128 (40 column mode) released for the Minigame 2002 Compo.

You are a worm (or maggot, in this case), and your aim is to eat as many targets as possible. Whenever you eat a target, the worm grows. If you run into the walls or yourself, the game is over.  The game is controlled with the numbers on the numerical keypad: 8 for up, 4 for left, 6 for right and 2 for down. Any other key makes the worm stop, which means instant Game Over!