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.
Unlockable Cholesteroad Items:
Unlock the following items by getting an “A” rank on the corresponding challenges:
ITEM – CHALLENGE
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
Unlockable Massage Parlor Items:
Unlock the following items by getting an “A” rank on the corresponding challenges:
ITEM – CHALLENGE
Bone Fangs – Koopa Corps
Furry Band – Bob-omb
Heroic Ring – Magikoopa
King Shell – All challenges
Treasure Ring – Goomba Storm?
Unlockable Hard Boss Challenges:
Unlock the following the Hard version of the following Bosses by beating their normal version once. The following hard version Bosses only allow the corresponding amounts of turns:
BOSS – TURNS
DURMITE X – 5 Turns
Beta Kretin X – 15 Turns
Wisdurm X – 18 Turns
Bowser’s Memory MX LX – 10 Turns
Junker X – 15 Turns
Dark Star X – 12 Turns
Boss Rush Mode and Bowser X:
To unlock Boss Rush mode, beat all the Gauntlet bosses in the Challenge Hall to unlock Boss Rush Mode. You’ll fight all the previous bosses AND a special Bowser X fight will be unlocked. You only get 35 turns to defeat King Koopa.
Rank Rewards:
Reach the following ranks to unlock the following rewards:
RANK/LEVEL – REWARD
Shell Rank / Level 6 – Equip 2 items of clothing
Flower Rank / Level 12 – Equip 3 items of clothing
Shine Rank / Level 18 – Access to Shine Rank Store in Toad Town
Star Rank / Level 25 – Access to Star Rank Mall in Toad Town
Rainbow Rank / Level 40 – Badge (Must have all special attacks)
Experience and coins hint:
When you reach Toad Town as Mario and Luigi, you should already be familiar with the two badges received from Princess Lipid during your trek throughout the Flab Zone inside Bowser’s body. Mario’s badges indicate the effect desired while Luigi’s badges intensify their power. First, go to the Toad Town’s Badge Shop and buy the Bonus Badge for 500 coins. Switch it with Mario’s Mushroom Badge, then buy the Excellent! Badge for Luigi (1,000 coins). When the gauge at the bottom left of the touch screen during battle is full, tap the combined badges to increase the amount of coins and experience points gained. This guarantees easy level-ups. Once you reach the Airway (after Bowser’s fight against Blizzard Midbus within Peach’s Castle), defeat as many enemies as you can and level up. Also, you will receive the Excellent!! Badge for Luigi as a reward if you have defeated Dark Bowser with the Mario Bros. at Level 40. Switch it with the Excellent! Badge to receive even more coins and experience in the Airway.
Bowser’s Castle Cold Room code:
The Bowser’s Castle Cold Room door code is as follows: Square, Square, Circle, Triangle, Triangle, Triangle, Door.