Pokemon Rumble Blast Cheats - 3DS

Cheat Mode
After completing the game, hold [L] + [R] + [Left] on the D-pad whilst on the title screen and press [A]. Continue to hold these buttons until you hear a chime. In Legacy Mode, all areas will revert to how they were before completing the story, allowing you to obtain low-power pokémon regardless of your current world rank.

Unlock Special Toys
Use the passwords below to unlock special Pokémon in the specified levels. To enter a password, speak to Munna in Easterly Town. You must defeat them to add them to your collection. These Pokémon may have special moves and/or abilities that they normally cannot obtain. These only work with the North American version of the game.

Gallade (in 4-2 Everspring Valley) - 3535-6928.
Gliscor (in 4-3 Sunny Seashore) - 9625-7845.
Oshawott (in 2-4 Shimmering Lake) - 7403-2240.
Pikachu (in 3-2 Volcanic Slope) - 7746-3878.
Tornadus (in 3-2 Volcanic Slope) - 0250-7321.
Heat Stamp Emboar (in 1-3 Echo Valley, Japanese version only) - 8902-7356.

Unlock Street Pass Bonuses
As you meet people with the game on Street Pass, you'll be able to find new Legendary Pokemon on different areas:

Azelf [Shimmering Lake - Lake Area] - Meet 10 People.
Celebi [Everspring Valley - Forest Area] - Meet 60 People.
Jirachi [Firebreathing Mountain - Tower Area] - Meet 40 People.
Manaphy [Rugged Flats - Beach Area] - Meet 20 People.
Mesprit [Soothing Shore - Lake Area] - Meet 5 People.
Mew [Sunny Seashore - Factory Area] - Meet 80 People.
Phione [Rugged Flats - Beach Area] - Meet 20 People.
Shaymin (Land Forme) [World Axle Underground 2F - Ice Area] - Meet 100 People.
Shaymin (Sky Forme) [World Axle Underground 1F - Forest Area] - Meet 120 People.
Uxie [Sun-Dappled Bank - Lake Area] - Meet 2 People.
Victini [World Axle Underground 2F - Tower Area] - Meet 150 People.