Get Unlimited Combo Meter:
Go to the main menu and HOLD L R and press Left, Right, Down, Up, Up, Down, Right, Left.
Get All Upgrades:
Go to the main menu and HOLD L R and press Down, Up, Down, Left, Down, Right, Up, Down.
Get Unlimited Health:
Go to the main menu and HOLD L R and press Up, Right, Up, Left, Down, Left, Down, Right.
Get Dark Knight mode:
Go to the main menu and HOLD L R and press Right, Up, Up, Right, Left, Down, Right, Up.
Get All Rewards:
Go to the main menu and HOLD L R and press Left, Down, Left, Right, Left, Left, Down, Right.