Expert Mode...
	Fight Against Bowser...
	Go to Bowser the First Time on...
	Go to Bowser the Second Time o...
	Rivals on 2 Player vs. Mode...

At the Difficulty Selection screen, hold Up + Select and press A, while in Single Player mode and Vs. Com.

Password: 78RN5B?8

Password: T3R!NGGJ

Password: TLB1N?6K

Press L + R at the same time as each player.