From Wikipedia: Players take control of B.O.B., Missing Link, Dr. Cockroach PH.D. and Ginormica/Susan Murphy in all platforms, as well as Insectosaurus on the Nintendo DS version of the game. Each level is divided into multiple stages in which the player takes control of each monster's unique abilities to fight off enemies. The Missing Link can stick to the sides of large robotic bosses, take control of missile turrets, and outwit his opponents with superior acrobatic skills. B.O.B. has to solve complex puzzles one step at a time in 3-D mazes, can turn floating plasma generators into personal turrets, slide through grates and use enemies as living key cards/ammunition. Ginormica can use cars, Jeeps and hover platforms as roller skates to dash, kick, jump, and duck enemies and fight all bosses to devastate enemies. If the player chooses co-op mode, Dr. Cockroach can either appear as a secondary player with B.O.B. or deploy his "Multiplayer Drone", which can shoot obstacles, enemies, and other items. Dr. Cockroach also has a "DNA Lab", where he uses Monster DNA collected throughout the game to purchase upgrades, extra content (3D models, concept art, etc.), and extra levels. The music was composed by Jim Dooley, with live brass recorded at the Warner Brothers Eastwood Scoring Stage.