Press pause, hold Ctrl and enter these codes:

• Infinite Lives: DOWN, DOWN, UP, DOWN, RIGHT, DOWN, UP, UP
• Invincibility: LEFT, LEFT, UP, LEFT, DOWN, RIGHT, Right, Right
• Level Select: UP, DOWN, LEFT, RIGHT, RIGHT, RIGHT, DOWN, LEFT
• Skip current level: RIGHT, LEFT, UP, UP, UP, Right, LEFT, LEFT
• Turns coins into Mad Garibs: RIGHT, LEFT, RIGHT, LEFT, UP, UP, LEFT, Right
• Unlock all Characters: LEFT, RIGHT, LEFT, LEFT, LEFT, UP, LEFT, LEFT
• Unlock all Extras and Bonus Levels: RIGHT, UP, UP, DOWN, RIGHT, DOWN, RIGHT