Release type: Official Release Publisher: Imagic Developer: Imagic Platform: Atari 2600 North America Genre: Shoot 'Em Up Release Date: 1982 Box Text: Destroy you! That's what these space demons are here for. Blast em and survive. But each wave of demons is tougher to destroy. These strange interplanetary Joes are tricky. When hit some split in tow. All are replaced by even more attackers.