NDS Cheats
This page contains a list of cheats, codes, Easter eggs, tips, and other secrets for Mario & Luigi: Bowser's Inside Story for Nintendo DS. If you've discovered a cheat you'd like to add to the page, or have a correction, please click EDIT and add it.
Boss Rush Mode and Bowser X
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 himself -- it's Mario's toughest battle yet!
Challenge Hall Hard Boss Challenges
Hard versions of bosses can be unlocked by beating a boss's normal version once. Hard version battles only allow a certain number of turns. Here are the bosses you can unlock:
- 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
Alternate Endings
The following endings can be unlocked by performing the actions listed below:
- Alternate Ending 1 - Complete the game with Mario, Luigi and Bowser at level 40 or higher
- Alternate Ending 2 - Complete the game with Mario or Luigi at level 17 or lower
Bowser's Castle Cold Room Door Code
The Bowser's Castle Cold Room door code is Square, Square, Circle, Triangle, Triangle, Triangle, Door.
Rank Rewards
The following rank rewards can be unlocked at the ranks below:
- Shell Rank / Level 6 - Equip 2 items of clothing
- Flower Rank / Level 12 - Equip 3 items of clothing
Shine Rank / Level 18 - Shop at the Shine Rank ShopStar Rank / Level 24 - Shop at the Star Rank ShopRainbow Rank / Level 40 - Unlock Excellent!! Badge
Cholesteroad Items
Get an A Rank on the following challenges to unlock the items below:
- <B>Advice Patch</b> - Spin Pipe
- <B>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
Lumbar Nook Alarm Code
In Lumbar Nook, when you dig into the bone, there's no need to wait for the alarm, just enter this code to trigger it immediately: A, B, X, Y, L, R, Y, X, B, A
Massage Parlor Items
Achieving A ranks in the Massage Parlor challenges awards you the following items:
- Bone Fangs - Get an "A"rank on the Koopa corps challenge
- Furry band - Get an "A"rank on the Bob-omb challenge
- Heroic ring - Get an "A"rank on the magikoopa challenge
- Treasure ring - Get an "A" rank on the Goomba storm challenge
Secret Traveling
When traveling in this game, you'd just think to use the Chakroads and the pipes in Pipe Yard, but there's another way. If you go to the end of the Tunnel, the way you first get into Toad Town Caves, or Bowser's Treasure Area as Bowser, you'll notice some train tracks leading through the room. If you follow the tracks into a new room and press Select, you'll notice that you're in a new world. With this, you can travel to any of these three places as Bowser.