Adventures of Robbo

The game's design was partly inspired by Boulder Dash, but with the gravity aspect removed. The player controls the titular little robot through a series of planets (56 in the original Atari version), each being a vertically-scrolling maze filled with various objects and obstacles. The goal of each level is to collect all bolts scattered around, and then reach a capsule that takes the hero to the next planet. On his way Robbo must avoid deadly obstacles that include moving creatures, laser turrets, and large magnets. Various items can be found, including keys that open doors, bullets that kill enemies and destroy impassable walls of rubble, crates that can be pushed, bombs that explode upon being shot, and mirrors that teleport the hero around the level.