Super Mario 64 DS Cheats

Under water walker!
Go to Wet, Dry world and go to the town and the water level could be any level. Drain the water at the town. At last get the flower power it shold be there! And go through the small gap as how you got in and go to where you swam down and use the 3 veiw. There shold be water above you and wala! Your Underwater!