The Fault Line is a large multiplayer level in the MPH Multiplayer. It is based on the room of the same name in the Metroid Prime Hunters single player mode. Containing many floors, tunnels of ice, and many Jump Pads, as well as Affinity Weapons such as the Imperialist and Battlehammer, make it easy for any Bounty Hunter to navigate the area. Fault Line is not a default stage, and it must be unlocked by playing 22 local games.