TechLookz

Play as New Goblin While standing on the Helicarrier, press Left, Down, Right(2), Down, Left to unlock New Goblin.
Play as Sandman While standing on the Helicarrier, press Right(3), Up, Down, Left to unlock Sandman.
Play as Venom While standing on the Helicarrier, press Left(2), Right, Up, Down(2) to unlock Venom.
5,000 upgrade points While standing on the Helicarrier, press Up(2), Down(2), Left, Right to get 5,000 extra upgrade points. Note: This code can only be enabled one time.