Love the concept here! The graphics are also good, and I love the feel of the cannon in particular.
Just some constructive criticism from my side:
- The UI looks out of place compared to the rest of the game's art style. Maybe make the buttons wireframes too instead of solid filled ones?
- Most of the later levels feel luck based, so I end up shooting balls and just wishing for the best.
- There doesn't seem to be a reason to have a 2 ball limit (Though I only got to level 10), but it could be a good idea to have some mechanics in place that requires two balls to be present at the same time.
- Sometimes the balls don't bounce correctly, but it's few and far between
All in all a pretty solid game! Can't wait to see what you do with it