Hmm, I'm stuck on the level where you're against that electric spewing machine thingy. The one which shoots vortexy things that knock you back. HOW THE HELL DO I KILL IT?

Resist that wave, don't stay too close to the floor or the octypus robot. Once one wave has ended, fly up to it and hack the shit out of it untill it starts glowing or dies. Repeat for the next ones - there will be 2 more once you kill the first one.