PC versions: Amstrad PC1640, CGA, EGA, VGA, Windows N.B. An arcade version (1991/Data East) was planned for release, but never left the prototype stage.
 Four levels are based on themes from Psygnosis games: Fun level 22: "A Beast of a level" (Shadow of the Beast) Tricky level 14: "MENACING !!" (Menace) Taxing level 15: "What an AWESOME level" (AWESOME) Mayhem level 22: "A BeastII of a level" (Shadow of the Beast II) These levels are replaced with normal versions in the one disk version, presumably for reasons of disk space.