At the main menu go to "Extras" > "Gusteau's Shop" > "Secrets". Choose one of the following options listed and enter the corresponding code to unlock it. You must have a profile loaded:
CHEAT FUNCTION/(CODE #) - CHEAT CODE +10,000 gusteau points(code 18) - Gusteaujack +50,000 gusteau points(code 19) - Gusteauomni +5000 gusteau points(code 17) - Gusteaupot All bonus artworks(code 12) - Gusteaures All colony collection missions - STUFFED All concept art(code 8) - Gusteauart All dream worlds in gusteau's shop(code 13) - Gusteaudream All four championship modes(code 9) - Gusteauship All items in gusteau's shop(code 16) - Gusteaucombo All single player and multi-player mini-games(code 10) - Mattelme All single player mini-games(code 15) - Gusteaulevel All slides in gusteau's shop(code 14) - Gusteauslide All videos(code 11) - Gusteauvid Fart when jumping(code 5) - Ilikeonions Head butt when attacking instead of tailswip(code 6) - Hardfeelings Infnite dash energy - SPEEDY Move undetected by enemies(code 4) [NOTE 1] - Spyagent Multi-player mode(code 7) - Slumberparty No damage from enemies, but still take water and falling damage(code 3) [NOTE 1] - Shielded No impact or damage from enemies, but still take water and falling damage(code 2) [NOTE 1] - Myhero Very easy difficulty(code 1) [NOTE 1] - Pieceocake
NOTE 1: This code cannot be unlocked until it is bought with Gusteau points earned during Story mode.