The game is beautiful, and I loved the broken button at the options screen!
Movement feels nice, although the enemies' projectiles feel somewhat unfair at times. Shooting was nice but maybe the aoe robot could have more of an effect on the screen (like shaking, more juicy!).
I had some trouble understanding the loot I was picking, I could see the batteries, but the other two felt like randomly going up 'cause I didn't get which was which.
The sounds were okay, just wish there would be some background music.
Loved constructing robots, I felt it blended very well in the game. Although I never met the last one since I always died before getting it. Also, maybe you could add something in their frame that indicate the player cannot build at the time, so we wouldn't have to select to check if we can (or learn their costs by heart).
Overall a fun top down shooter!