I have found only two cheat codes for gamecube Rainbow Six 3, them being invincibility (UP, UP, DOWN, DOWN, LEFT, RIGHT, LEFT, RIGHT, B, A) and laser trail (UP, DOWN, UP, DOWN, R-CLICK, R-CLICK). I have tried numerous ways of entering the sequence (yellow c stick, d pad and main joystick) but none seem to yeild any results. Can someone please tell me if I'm missing something or if there is some special way to enter cheat codes.