Ok, so for my birthday I recieved Pokemon Platnum. I love the game, but it won't work on my 3DS, yet for some reason it only works on my friend's DSi XL. It won't even work on mine or my brother's DS Lite. It's really weird. HELP PLEASE!!
Also another thing, it looks like someone's stuck a sticker on it. And it's an AU system, and an AU game.