228,480
Well, my actual high score just now was 334,940 (stage 3) but I couldn't pause in time to get a photo, and then I was basically done. Unfortunately I couldn't try this out until an hour ago because of a stomach bug going through my family. The game isn't too bad, but the hardest thing was holding down the A button the whole time; it might be better playing on something better than a GBA SP, or if they had made B accelerate and A jump--I'm finding it actually painful to play it for long! I also should have looked at the manual first, because I think the power-ups are key. Ah well. Happy New Year!
Oh, and I see I grabbed an old Post-It in my haste as well. That should say "ecmyers"