I recently bought a copy of Pokémon gold version at a car boot sale. I played it for a while but then I had to stop, so I saved and then turned the game boy off, and took the game out. The next day when I put it back in my Game Boy and switched it on, all my save data was gone and the only options were New Game and Cancel.
I checked online to see if it was fake, but it looked the same as all the real ones. I also compared it to my Pokémon red which I know is genuine, and all the details of the cartridge were the same (except for colour and sticker of course) here are some pictures of the comparison between the two games
Does anyone know whether this copy of Gold IS fake? How can I tell? Or is it just broken?