i havnt got them to work once, do you press back with the d pad or a stick, and how slow exactly? is there a indicator that tells you its active?
i found out what to do, just press all the buttons at the same speed, you dont have to press them slow just press them each and wait like a second in between so the speed is the same for each button. i just enter it super fast and it always works
If you use the cheat codes, can you still get the achievements? Someone told me that with the 360 games, if you use cheat codes, then the achievements are unavailable.