Demon Attack review. Classic Game Room reviews DEMON ATTACK for IntelliVision released in 1982 by iMagic, a Space Invaders style game where you shoot Demons using your laser cannon and eventually blast their mothership called Pandemonium! Demon Attack for the Intellivision is a better version of the game than Demon Attack for Atari 2600 with sharper visuals, better animation and that awesome space ship mothership that you destroy! CGR Demon Attack video review has Demon Attack Intellivision gameplay recorded from Intellivision 2.