Hey, that was me! (Incidentally, thanks for letting me butt in on your Taiko no Tatsujin session! I had forgotten how heavy those sticks are, and I had to pull off my wedding ring mid-song because it was digging into my skin, lol.)
So glad you're enjoying the game and that you've got a workaround for saving! I'm still hoping I can get some properly functioning cartridges at some point; maybe I'll actually table as a game dev sometime. Currently working on a sequel to TaiFab! 😄