One version is common, at least one other version is rare
Level design by Harald Kuhn. The level editor was programmed by Jens Meggers. Harald Höppner, Jens Meggers and Harald Kuhn working intensively on the Game (Amiga) for six months. Alex Craemer worked with Harald Höppner on a Atari ST conversion of the game, but Hudson Soft canceled it, because they don´t see a market for this version. The PC version was then done by Jens Meggers and Alexander Kurth. A Mega Drive version was also completed to 90%. Unfortunately, all involved people finished their study and then the game was never finished.