Great work! I honestly had a lot of fun playing it and the upgrades were nice and meaningful. I really liked the spray upgrade. My only problem with the game was getting booted all the way to the start. Unfortunately, the first 2-3 minutes of the game is super slow paced, until you finally get some upgrades. I would focus on making the early game faster or easier, so that players don’t find it tedious. Another suggestion I have is to add some feedback to when you get hit. I wasn’t really paying attention to the small health bar, but having some obvious feedback that I got hit would have gone a long way.
Great work!