Okay, got a chance to play it after you uploaded it to sendshare.
I'm sorry but this is downright awful in its current state. Don't take this wrong though, I'm sure you can improve upon this.
ACT 1
Oh okay some little walls and scenery that's nice.....and then what? There's some huuuuuge gap with a 1-up lying in front, some bonuses, then I pass a corridor and the level ends right up there! I didn't do anything!
ACT 2
I took the right path over a black pit (very unfitting with your texture set....it's unfitting with ANY texture set, at least use light blocks do give us a sense of depth) then some other room, then a stupid turret room which was really cheap at worst, and made no sense in a level dubbed as "Crawla Valley" I'm not talking about the Crawla part, I'm talking about the Valley part. I don't want to jump over some floating blocks in a grassland.
ACT 3
squares
oh god moving squares scrolling squares
help me
okay seriously this was more of the same, completely disjointed, stupidly short and linear with a dumb Eggmobile fight whose only saving grace was the difficulty the turrets added.
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You might be thinking "Zipper what the hell you can't give proper criticism get outta my face". The reason for that is I'd rather give you advice over the whole pack.
1)The stages are ATROCIOUSLY short. I'm pretty sure you also know this. Short stages are fine, but not when they're 15 seconds long.
2) There's literally zero atmosphere in your levels. Act 1 had some hills near the walls but that's it, the rest of the pack is enclosed between two 5 km cliffs. Check out most official levels, some well-regarded ones, observe HOW they made their level feel more organic, and not 2-wall thokfest-like.
3) The levels are empty as they're short. Run-jump-win only works linearly if we're discussing Megaman 1. Put some gimmicks here and there, anything works. You don't HAVE to constantly refresh them, but if you're resorting to platforms, at least find a way to keep it interesting.
I'm sorry if these advices were awfully vague, and I hope you understand what I mean by them. Good luck.