Lunar Leepers

Lunar Leepers, also released as Lunar Leeper, is a 1982 video game written by Chuck Bueche and published under Sierra On-Lines SierraVision label. It was released for the Apple II, Atari 8-bit family, Commodore 64, and VIC-20. The Apple II version of the game was copy-protected using Sierras Spiradisc system.