I started playing this game yesterday and I found a pretty weird....bug? Hitbox exploit? I'm not really sure what it is. I'm hoping someone here can help with it because it can potentially save a lot of time.
You can kind of float/hover on the corner between a spike tile and a wall, but only on the left side of a spike. You have to move pure vertical (so left+up) into the very upper corner of the spike. It won't work on the right side corner for some reason. While in the hover, you can hold left and push against the wall briefly before falling, or you can move off the spike with down and save your life. Anything else kills you, including just releasing left+up. I haven't found a way to jump off the spike corner while in this state. Example video below:
https://www.youtube.com/watch?v=HKBLJuC2SqE
You can probably imagine where I'm going with this. If the spike hover can be done in a spike-spike corner instead of just a spike-wall corner, we can skip a pool in stage 8:
http://imgur.com/45SAzQg (circle is the target spike hover location). I can't generate enough momentum from the upper spike hover to clear the red spikes, so I think it'd have to be done this way. Similarly, if there is a way to jump out of a spike hover, we can skip one of the lower pools. It might be able to be used elsewhere in that case, too.
I have so far been unsuccessful in doing either of these things, but I was trying in real time. Hopefully someone can look into this and confirm how this works. Thanks!
Edit: Uploaded the movie file to make testing easier:
http://dehacked.2y.net/microstorage.php/info/1487153618/Spike%20hover.fm2