Last week I got AR for my DS lite and I used it on my Pokemon Diamond game. I only used the codes for more master balls, mew, torchic, darkrai, and accessories. when I tried to use it again on the bottom screen it said WARNING MISSING CODES (5 left). my action replay will work with pearl and any other game but pokemon diamond.

Video Game Consoles & Games - Datel - Action Replay for Nintendo DS