AirMario64
Starting MS-DOS...
I just replaced my Pokemon Yellow internal battery 2 days ago. It was working perfectly, and saving and all. I connected it to Pokemon Stadium 2 today though, and it said "Save file not found." So I powered off the console and stuck it in the GameBoy and it erased the data. My Red and Blue haven't lost any saved data from Stadium 2, so I think it's kind of strange. It also loses data often when I have it inserted in the Super GameBoy. Is this a known problem for Yellow? Should I worry about losing data in Red and Blue?