Pokemon Puzzle Challenge Cheats

At the beginning, right when Pikachu smiles, enter:
B, A, Left, Left

This will increase the speed drastically if you're on speed 99. Normally, anything at or above 50 will continue at speed 50.

When you power on the game, wait until Pikachu smiles, then enter:
Left, A, B, Up.

With this code, the blocks will no longer temporarily stop rising when you score a chain or combo.