i'm in your conscience
That's definitely a fake or a bootleg. It's not the real Crystal Version. If it's in English, it's probably a bootleg. And if you have the Vietnamese bootleg, you're in for a treat...it's fully English, but translated so badly that it's hilarious. Have fun if that's the case...totally jealous if it is lol.
If it's comprehendible English though (boo!), it's just some run of the mill bootleg. idk what to tell you really. If you don't like having these, I suggest not buying them online and instead buying used old games from a local gaming store, like Replays if you have any wherever you are.