

As Billy, you embark on a daring mission to save Gizmo the Gremlin from the towering Clamp Tower, where Dr. Catheter intends to conduct cruel experiments on him. Unluckily, Catheter learns of your intentions and creates an entirely new wave of dangerous gremlins. Consequently, your quest shifts to one of survival, combat, and evasion. Elite's version of this is a five-stage side-scrolling action game where you dart through levels, dodging or firing at the gremlins. Each stage contains a hidden item that must be retrieved. Collectible power-ups include extra lives, time extensions, enhanced weapons, and credits that can be used to purchase a new weapon after completing each level.
| Amiga | December 31, 1990 |
| MSX | December 31, 1990 |
| ACPC | December 31, 1990 |
| Atari-ST | December 31, 1990 |
| ZXS | December 31, 1990 |
| DOS | December 31, 1991 |