Heal Bowser’s back instantly:
To heal Bowser’s back instantly, enter the Lumbar Nook, and dig into the
broken bone. Press A, B, X, Y, L, R, Y, X, B, A to make the alarm ring.
Alternate endings:
To unlock an alternate ending, beat the game with Mario, Luigi, and
Bowser over level 40. To unlock a different alternate ending, beat the
game with Mario or Luigi below level 18.
Cholesteroad items:
Unlock the following items by getting an “A” rank on the corresponding
challenges:
Advice Patch – Spin Pipe
Bro Socks – Yoo Who Cannon
Challenge Medal – Green Shell
Daredevil Boots – Jump Helmet
Dizzy Boots – Super Bouncer
Master Wear – All challenges
Siphon Gloves – Magic Window
Massage Parlor items:
Unlock the following items by getting an “A” rank on the corresponding
challenges:
Bone Fangs – Koopa Corps
Furry Band – Bob-omb
Heroic Ring – Magikoopa
King Shell – All challenges
Treasure Ring – Goomba Storm?