Have you actually beat the Elite Four on any of them?
Yeah, after you start the game following beating the elite 4, you get the deletion message. I bought the 5 GBA Pokemon games for $50 on Amazon. They were fakes. I got another bundle...for $200, and they were real. The person who sold me the fakes refunded me and let me keep the fake games. This way, nobody will be scammed to get these games.