This is Grandia: Parallel Trippers for the Game Boy. I have confirmed that it works for a few minutes from the title screen on a Game Boy Advance. I was able to save during the test, but since it's an old cartridge, I can't guarantee it. I can handle up to 24 Game Boy cartridges in a combined order. I can discount 200 yen for combined shipping, so please contact me through the combined order request.