Eidos-Montreal's Marvel’s Guardians of the Galaxy launches the iconic team of rogues to the deepest quadrants of space, during what turns out to be a substantial sci-fi and rock-infused singleplayer narrative. As a result, Star-Lord and the gang end up consistently rubbing shoulders with some of the comic book publisher's most intriguing cosmic forces, factions, and people. Between Cosmo the psychic Spacedog and characters like Lady Hellbender, players are left with a sense that anyone or anything could show up at any moment. One entity that plays a constant antagonistic role in driving the story forward from its beginning, though, ultimately reveals itself to also be the game's final boss battle.