Its the x3 everdrive. I haven't had issues with it before but I have only used it on a couple of pokemon games and my own game and it's sat unused for a year or so now so I wouldn't be surprised if it's the everdrive. It doesn't seem to crash on a GBA like it does on GBC but the save doesn't work another reason to think it is probably the everdrive. Runs fine on my 3ds thru twilight menu so that's where I'm playing it. Great game just wanted to share in case it was an issue with the game