Apparently, I have just stumbled across something incredible while messing around with AR. I used the combination of Moon Jump and a Spring Board to get out, and I landed in the bottomless pit where the where you enter Mission 8. Because I glitched it out, I was walking on the bottom of the ocean floor, but that's not the amazing part at all.

I moon jumped up to the shallow water part of the beach (near where you spawn when you enter the level), but stayed underwater. For some reaon, this part of the underwater (I guess it's sand...) makes Mario travel really fast.

And I don't mean "Running-up-a-slope fast", I mean it's like three times that, and it takes longer to stop. Mario even has some sort of animation for the sprinting, with his arms flying behind him, which I've never seen anywhere else in-game.

If the animation is technically unused, it actually reminds me of how Sonic runs, animations and all. I almost wonder if it was meant to be a cleverly-hidden easter egg, because Nintendo and SEGA were rivals at this time. Huh.

I'll get a video of this up someday.