Based on 1986 Binary Design/Mastertronic Spectrum release, 180. Amiga conversion ported from 1988 Zippo Games/Arcadia coin-op.

TRIVIA - The game began development before John and Ste Pickford left Binary Design to form Zippo Games. After their departure they continued development as freelancers using "The Flying Ravioli Brothers" pseudonym, perhaps to prevent any legal claims that Binary Designs may have otherwise made on the game [Source: The Pickford Bros. website].