Game genie:
200?DFB?80A - Re-enables the debug cheat functionality. To use it, hold A + B + Select + Up + Right and power on the console. At the title screen, hold Left and press Start. Also, you can hold either A or B or both in addition to Left before hitting Start. Indication that the debug mode is enabled is there no "PAUSE" text on the pause screen.
For any combinations of buttons, during the game, press Select to instantly complete any level except 4-3.
If A were held, the timer is stopped.
If B were held, invincibility enabled.
