My personal copy. I haven’t turned this one or tested it in years but I can say it worked great when I had a gameboy. Apparently this is a rare version. I had no idea. I wish I could give more info on this

Unfortunately I can’t give any guarantees on this past that. I don’t know how to change a battery and I don’t have a game boy to test this. I do t even know if there are pokemon in the game if it does still work.

Sold as is. Feel free to message me any questions you might have e and I’ll try my best to answer them