Upgrades and power ups are always fun!! I like this style of play. You all did a great job working together and making a game as a group.
Some things I noticed, enemies would spawn on top of me and immediately take health away. Overall, the game seemed pretty difficult. There's also no feedback when the player gets hit, which makes it hard to tell if you're getting hurt or if you're doing good. There were a few occasions where I couldn't get the dash or sprint to work (I might have been doing something wrong though). Also, when I clicked on the fullscreen option, the game stays at the same small size.
These little things aside, I enjoyed the game and liked being able to shoot all the enemies and collect power ups. Nice job of the entire group making this game!