What is the invincebility code for Star Wars battlefront

there is only one code for the first one and that it to make your name Jub Jub and it makes everyone small as for the second one it is: up,up,up,left,down,down,down,left,up,up,up,left,right make sure to pause the game and then type it in and if that doesent work then pause the game and press and hold R2 while putting it in PS2 version