Ok, I found out that I can use cheats on M3 SD using the cht files, but as far as I can tell, the cht files do not work. I downloaded the correct files so that's not the issue. Here are some of the problems I've encountered due to the cheats. 1. Game crashes and all I did was turn on a single code. 2. L+R+A+B reset functions do not work. I can load up a menu, but pressing A or any button does not work. I can't go into the cheat menu to disable codes either. 3. If the code doesn't crash the game, it just does nothing. Yes, I have the code set to enable.