Okay, I left the battery out of the cart overnight. When I got the chance, I turned it on again, without the battery, and found that it FINALLY forgot the saved data. Continuing led me to the new game screen.

This in mind, I opened up the cart and slipped the battery back in. One other thing. The battery wasn't actually glued in like I first though, it was actually POKED into place if you get my meaning. As in, the metal from both sides of the clips was stabbed into the battery itself, like a kind of staple, but using the already present metal. Thing is, it didn't really need to be because I slipped the battery back in and the clips (which I bent back into shape) held it just fine. It'll only come loose if I shake it up REALLY hard, so I'll leave it like it is for now until I find some tape, you know just to make sure.

Well, I started a new game after inserting the battery and the data was cleared, but it would seem the glitch is still there. Somehow, the data on the cart itself has become corrupt. I'm really not sure how that managed to happen though. I could probably play through it well enough, but it's just as likely that something other than the last character in my character's names is corrupted and I might encounter all sorts of bugs as I get into the game. I could try playing through just to check that out, and I might just do that. In any case, I'm afraid I'll end up having to sell it or something. I COULD try trading it in. I could just say I'm doing it for the superficial reason that I want a game with an unripped sticker and no stamp on the cart so they don't suspect anything I suppose.