To use these cheats , go to 'Cheats' section and write the cheats, when the cheat is accepted, USC WON'T INFORM YOU ! So don't wait to see a 'cheat enabled' text or something, just type them in and press 'esc' button to go back.

Code	Effect
emeraldmaster	To have all emeralds at the end of the game.
icanplaylevels	To access all levels in Free Play.
showmehowitends	To see ending scene.
whoischaos	To see my picture.
youcantkillme	Infinite lives! You can't have more or less then 3 lives.