One New Trick
I had got the idea since I was making SMB_Warpless run, I thought it was impossible at the first time, but then I proved me wrong when I tested -2 stage again.
It was a fish, actually, it was a "Cheep-cheep" who helped me. I've found lots of strange tricks before, but never that strange. It's almost the largest range a flying-fish can get.
I tried lots of circumstances to get that exceptional randomness, few of them worked. Some of the fishes seemed work, but I was not able to use them. It's hard to explain.
But somehow I made it. I had to give up little entertainment to get the right circumstance. This randomness might be improvable, but it could hardly save time, it's quite impossible to get the fish goes 20 frames faster.
Credit
Thanks to GAP(a Chinese player) for helping me a lot on this new trick.
Also, thanks to
klmz for his 1-frame-improvement in -3 stage. I'd like to team up with
klmz this time, but for some reasons, it's not going to happen this time. It's a pity.
Oh, and SMB_Warpless run will be improved with this Cheep-cheep glitch by me :)