I played this for a bit, here's some thoughts:
-The player character is in a ball, which is a nice idea, but it doesn't feel at all like I'm controlling a ball. I would expect inertia and rolling momentum to be factors in the movement, but I can stop and revert on a dime right now.
-The camera is angled very shallowly, which makes the front of the playing field (the part close to the camera) appear much larger than the back and also means enemies on that part of the playfield are visible closer to the character than those in the back. I've nearly and actually ran into enemies a couple of times, especially after getting the full speed upgrade.
-Sound is alright for the style and overall feel but the music did get grating after a while.
-The UI style is kind of disjointed, the game has a very programmer-art / whitebox look in general but right on the loading screen I got two different fonts that didn't mesh imo.
Other than that I like the idea, I thought the upgrades and progression were fine and it might have the potential to be quite unique if you lean into the rolling ball controls and physics more!