Why don't you just play it and find out?

Seriously? It's on the first page in plain sight.

It's too hard to tell with the blurry images. Check this guide for easy ways to tell if it's fake or not. Just take a look inside above the contacts for the Nintendo logo. I think I can see the embossed numbers on the right of the label.

If you paid 40 at a used game store chances are its legit. Closing this because COME ON