Captin Quark in a tutu- In the Quark vidcomics enter up,up,down,down,left,right,circle,square,square.
Play as Snow Dan
Hold L2 and press Right, Left(2), Up, Left, Right, Left(2)
Alternate play as Snow Dan
Hold L2 and press Left(4), Up, Right, Up, Left
Play as Nefarious
Hold L2 and press Up(3), Left, Right, Up, Left, Up
Duel Blade Laser Sword
Pause the game and enter: CIRCLE, SQUARE, CIRCLE, SQUARE, UP, DOWN, LEFT, LEFT.
Insomniac Museum- In Metropolis go down the path into the first building. Hop onto the left window sill, break the window and hop to the next building. Jump onto the left side, break the window and enter the teleport between 3 am and 4 am to get to the Insomniac Museum.