The player wanders through a 3-D maze, eating pellets and avoiding red ghosts. Eating a power pellet turns the ghosts green and gives the player the ability to eat them for extra points. It is a notable example of an early video game told from a first-person perspective. Similar to Pac-Man, the game had an increasing difficulty for each level completed. However, unlike Pac-Man, the player wasn't required to eat all the pellets, but an increasing percentage for every level completed. The player could gain bonus points by eating extra pellets over the level requirement and skip to the next level at any point (which could be used to avoid ghosts when trapped), being automatically advanced upon eating all pellets in the level.