Family Guy: Back to the Multiverse is now available at retail outlets in North America. The game’s story was written and voiced by Family Guy talent and features Stewie and Brian traveling through parallel universes in a mission to save Quahog from Bertram, Stewie’s nemesis and half-brother. Playing as either Stewie or Brian, each special weapons and abilities, players will encounter an array of Family Guy characters, references and more through drop-in/drop-out co-op multiplayer mode and competitive multiplayer challenges. The game is now available on PS3 and Xbox 360. The game lands in Europe on November 23. The launch trailer is below.