I just bought this for $30 from GameStop today on a whim and I’m pretty sure I was burned by a fake cartridge. It gives me a “bad header” error on my AP and advises me to clean the cartridge pins. I honestly would not care as long as it worked. Maybe it has a nice Eurasia scene cracktro on it. 😎
However I am somewhat intrigued by the likely counterfeit PCB, how are they using one primarily made for battery-powered Pokemon games to play one with EEPROM-based saves?