To remove the background grid, enter the following password during gameplay: hold the left and right triggers and left and right bumpers and press B.
Cheat: Change Jewel Types
To change Jewel types, enter the following password during gameplay: hold the left and right triggers and left and right bumpers and press A.
Unlockable: Cognito Mode
You must complete all the puzzles in Puzzle mode.
Unlockable: Hyper Mode
To unlock Hyper Mode, complete eight levels on Action Mode.
Unlockable: Twilight Mode
To unlock Twilight Mode, complete seventeen levels on Classic Mode.
Unlockable: Finity Mode
To unlock Finity Mode, complete 280 levels on Endless Mode.