It's not exactly how I remember Action Replay/Powersaves being in the past. It needs to be connected to the internet at all times and you can only use the code database that they have on their servers. There's nothing you do, as the user, aside from select the codes you wish to apply to the inserted game. I grabbed it primarily for my Pokemon games, and it does do its job quite well. I wish I had more control over the codes, but it does work really well none-the-less.