Very fun game, man.
When I realized the penalty/reward system for changing gears, everything opened up a bit and I enjoyed it a lot.
I dislike how the enemies fade when killed, as with so many things going on, it's hard to even tell if you've fully killed something during a big fight. The sound is super loud above everything else too, which doesn't actually solve the problem, but makes it so you can't hear a single other noise, considering enemies are always dying, that noise never goes away and you can't actually hear missiles or important cues.
Those are my only complaints, everything else seems solid and improved from last demos. good luck with the rest of development!