Cheat List
On the main menu, hold L and R while pressing the following:

* Unlimited Health: UP, RIGHT, UP, LEFT, DOWN, LEFT, DOWN, RIGHT
* Unlimited Combo Meter: LEFT, RIGHT, DOWN, UP, UP, DOWN, RIGHT, LEFT
* All Rewards: LEFT, DOWN, LEFT, RIGHT, LEFT, LEFT, DOWN, RIGHT
* Dark Knight Mode: RIGHT, UP, UP, RIGHT, LEFT, DOWN, RIGHT, UP
* All Upgrades: DOWN, UP, DOWN, LEFT, DOWN, RIGHT, UP, DOWN