Definitelly not a bad entry, and trash bot dude looks adorable so I'll give him that. This really only lacks some polish and quite a few bug fixes to be honest.

The controls are really slippery tho. I don't know if this is intentional or not, but in either cases, it doesn't fits well with the level design, since I was constantly falling off of platforms in a very annoying way. Most of my other nitpicks are all related to bugs tho, like for example, my health was never being shown properly, sometimes I had a single gear on the Hud and still survived a lot of hits before actually dying. The room where you get the double jump is also bugged, the camera doesn't follow you properly there, so I got the upgrade off-screen, wich made me take wayy too long to realize I was actually able to double jump now.
There is also some very cheesable strats here, like for some reason the tip of my gun still does damage even when I'm not shooting, so I could just ram into the flying bots that they were just insta-dying. Also, you said on the game desc that the right mouse button is reservated for the dash, but since I don't have it, both buttons shoots, so if I just butterfly click both buttons I turn my weapon into a super minigun, and I used that to totally shred the boss I found.

I'm afraid I skipped a big chunk of the game tho, because I didn't found the dash upgrade at all and I also didn't see the big boss on the screenshots. Not to mention the final room has that very tight spike gap that I assume I was supposed to pass using the dash, but just did it pretty easily with a precise double jump instead.