Aw, don't just give up. If you do, I'll probably end up doing this (after I do Kururin Paradise, of course), but that's still not a good attitude to take. I think you should finish your video with non-perfect optimization (run at 25%, savestate every 3 seconds or so) and then either start version 2 yourself or let someone else do it.
Have some random tips:
- Hitting the side of a level while in a heart zone can push you forward and will turn back your rotation a bit.
- After the last turn, go all-out to the exit.
- Try to navigate corners and wide turns in the wrong way, it might save time.
- Hitting a spring either (a) turns you around or (b) speeds up your rotation, depending on how you hit it.
Also, remember that if there's an item in a level, your time is definately going to be slower than the record, and you shouldn't worry about that.
Also, take a look at these videos. They're the ones I have that beat or equal your TAS times:
http://www.mzrg.com/filepost/kurukuru.zip
(Please, try not to download this more than once, and only download it if you really want it, because I don't have ALL that much bandwidth and this is a 5MB file)
EDIT: Oh yeah, forgot to tell you. If you want to optimize a level, you MUST play through it at least two or three times. Even if you start perfectly, and optimize perfectly, it may still be possible to get another frame or two out of it.
Then there are little tricks that you barely see.
On Challenge 1-2, for example, going through the top part level with the line is the safest (as your rotating stick is centered in the passageway), but you can only get 2"20 minimum with that. If you keep your stick one pixel lower, you have much less room for error, but you can get a 2"18.
