Bonus Levels...
	Clear pause screen...
	Ending sequence preview...
	Practice bonus rounds...
	Remove Pause Text...
	View Ending...

By pressing buttons 1+2 at the sametime during the Title Screen.

Pause the game and then hold I + II + Select.

First activate the "practice bonus round" code and then highlight the Exit option and press II + RUN.

Hold II and then press run on the difficulty selection menu.

Pause the game (by pressing run) and then press I, II, and Select all at once.

Enable the Bonus level cheat. Highlight 'Exit', then press II + Run.