For Infinite Health press start, then scroll to the right using the "R" button until you reach the Level Up screen. But you have to be able to level up manully! Then press level up. After that press the white button on your controller. Then a text messager should come up with a word bank. Simply press "A" to type in a letter, and use the "R" and "L" buttons to go side to side to choose your letter. Type in "YODA'S ROBE", then press the white button again to enter the cheat. Then you should hear a lightsaber. Cheat Complete!