Mario And Luigi: Dream Team Nintendo 3DS Cheats

Hard mode
Successfully complete the game to unlock the Hard difficulty.
Jukebox Successfully complete the game to unlock the Jukebox.
Character ranks Reach the indicated level with Mario and Luigi to obtain the corresponding rank, which unlocks new bonuses (gear and attacks) and extra privileges (for example, access to new shops):

Flower rank: Reach Level 16
Rainbow rank: Reach Level 40
Shell rank: Reach Level 8
Star rank: Reach Level 26

Expert Challenge unlockables Earn the indicated number of points from completing the Expert Challenges to unlock the corresponding bonus:

Birthday Boots: 450 points
BP Knockout Bangle: 200 points
Duplex Crown (all challenges): 1,000 points
Expert Boots: 20 points
Expert Hammer: 300 points
Expert Wear: 90 points
Golden Hammer: 600 points
Master Gloves: 800 points
Perfect POW Gloves: 140 points
POW Scarf: 50 points

Mad Skillathon unlockables Earn enough points while performing certains Bros. and Luiginary attacks in the Mad Skillathon in Wakeport to earn ranks attributed to your score. Obtain the "S" rank (highest rank) with the indicated attack(s) to unlock the corresponding bonus:

Action Boots: Dropchopper
Bare Boots DX: Bomb Derby
Blunt Hammer DX: Luiginary Flame
Coin Boots DX: Luiginary Ball
Excellent Boots: All Luiginary attacks
EXP. Bro Gloves DX: Slingsniper
Flame Hammer: Fire Flower
Lucky Gloves DX: Luiginary Wall
Master Wear: All Bros. attacks
Perfect Bro Gloves: Star Rocket
Rally Belt: 3D Green Shell
Sap Hammer DX: Luiginary Stack
Strike Gloves: Bye-Bye Cannon

Pi'illos unlockables Rescue the indicated number of Pi'illos from their prisons to get the corresponding bonus from Eldream in Brickle's maintenance hut:

Bare Hammer: Rescue 6 Pi'illos.
DoB Hammer: Rescue 7 Pi'illos.
DoB Ring: Rescue 18 Pi'illos.
Golden Wear: Rescue 26 Pi'illos.
POW Gloves: Rescue 12 Pi'illos.
POW Gloves DX: Rescue 37 Pi'illos.
Zee Egg (Bros. attack): Rescue 52 Pi'illos.