!!! WARNING !!!
This is a warning message to help protect both your DS & DSi and YOUR wallet.
The DS Action Replay is great to occasionally run over The Sinnoh Region, or even stomp through Super Mario Bros. BUT when it's over-used, or just has too many cheat codes, chances are, it's gunna mess up your gaming system, or the game it's self. I recommend not using The Action Replay on EVERY game you ever get, especially REALLY EXPENSIVE ones, as it's a good way to lose $20-$170, and the same with using it 24/7, or just the same amount of time that your DS is used.
The DSi is a newer version of The Nintendo DS & DS Lite, BUT your Action Replay most likely won't work on the DSi is it works on the older two.
The above is written 100% by expirence, you may not like to hear this, but I'm only trying to save your gaming fun, your wallet, and EVEN YOU!
P.S. Using the Action Replay about an hour a day would most likely be best, or if you only use it once every few days, then maybe 2-3 hours, but i all depends on YOU!
P.P.S. If I could get a Mod to "approve" this, people would take it seriously. I'm not asking to be a mod, but maybe having one agree, or remaking this thread, it would REALLY save people(If this does happen, I would only need a little credit, EX: This thread was thought of by Tyler, ETC). Thanks!