The Dungeon contains areas in which the Guardian flies through as a spaceship. The Dungeon has many aliens to destroy. At the end of an area in the Dungeon, there is a boss, a very strong alien that must be destroyed. After destroying the boss, the Guardian flies out of the Dungeon and back into the Labyrinth. The player then gets a power-up. The player may also receive a key for a warp panel. Some entrances to the Dungeon are already open. Other entrances need a certain task completed before going in. Clues in the Labyrinth tell players how to get into these entrances.