Lucifer's Revenge

Lucifer's Revenge is a 1-player arcade game for the Apple II.

The player controls a robot-like creature that can move in all directions, but can only fire vertically forwards. The player combats a number of similar-looking purple robots on the screen which can also move about and fire vertically downwards. The player can not fire through the various geometric shapes on the screen, but the enemies can. If the player hits an enemy or their gunfire, a life is lost. When the player destroys all enemies on the screen, they advance to a more challenging level. The player starts with 3 lives, and when all are lost it's game over.