Hey, I really like this! Everything felt very good to me in terms of controls and movements, even using a keyboard. I like the vibe, the level structures, and then the upgrade systems. And in the beginning at least, I never felt like things were overly difficult, so it's a nice ramp up. But I can see that things were starting to get hard as I went, especially in working with the shooting mechanics, and the enemies that also shoot. Also, just trying to go fast will be a fun challenge after you complete everything. I also like the forgiveness of the helmet damage, so you're not just dead after one mistake. And if you can move fast enough you can catch your helmet before it falls too far (but it falling is a nice/fair punishment). Very clever design. And overall things seem very nicely polished, with a good amount of juice. So, I don't really have much feedback other than great work!