Visually cool, I love the vibes the game has, and the chill music.
Some minor comments:
- One of the two sounds played when you absord a ball sounds like an error, it feels wrong. I had difficulties during the tutorial because of that, not being sure if I was playing correctly.
- The levels are too short, you just start one and it's already finished, and you have to wait for the next one to start, killing any flow potential. I'd merge them all into a single level, with the new enemies appearing as soon as all the bullets are fired.
- The difficulty ramps up too slowly for my taste.
- I love that you took some time to add a leaderboard!
Keep up the good work!