Space Worms is an top-down shooter game for the Commodore 64 that was published in the April 1989 issue of the Compute's! Gazette. In the vein of games like Galaga, the objective of the game is to destroy gigantic space worms that kill you on impact. Every time you shoot it, the space worm gets shorter and shorter. Keep shooting at it until it disappears.
nymx here decides to play the game until the difficulty tops out, which is when the space worm can no longer get any longer, doing so in record time.