Movement felt really crisp. I was expecting more sideways momentum in the air when I let go of an arrow key to keep me travelling in that direction further, but I got used to not having that. All the level set pieces are super cool, the big crushers felt impactful and dangerous, Like I was in some giant machine. Maybe add some gear and cog motifs to the background in those piston levels? My major criticism is the double mines, I had the most fun flying through the levels as fast as I possibly could and speed running it and they just killed the flow of momentum. Maybe if you made them a bit further spaced so it was possible to fly through the middle. Launching myself downwards was heaps of fun and was really useful for beating some of the challenges. Please tone down the gun firing sound though, I set my SFX volume to 6 and my housemate could still hear them shooting with my door closed. Oh and the way the guns interact with the other physical elements is really good design. Lots of fun had with this one.