If you're gliding And hit down, you do a barrel roll, if you aren't gliding, and just in the air, then you'll start going down faster, if there is a creature there, you will either normally hit it, you may also have a chance of slamming it into the floor, but it may stop your kill combo.
You should add a 'Pull' power, where you click one spot for it to stay in one place, until you re-click the item, or limb, then grab a different part of the doll, so you could rip him apart easily, and evenly.
I hope your making another one, *hopefully with custom gear, and character(Class&Looks)* but overall This is a terrific game, and I can't wait for another one! :)