Challenging game, I included it in a compilation of all of the Corona Blitz games, if you'd like to take a look :)

plus it's got plenty of room to grow if you ever decided to - like discrete "levels" with additional obstacles (static blocks scattered around), or multiple stars simultaneously maybe with a timeout, or other types of on-screen "hazards", balls with different physics attributes, maybe a multi-ball release bonus, etc.

ok, this is very clever! i've never seen a control scheme like this before, and as such, yes, it took a minute to figure out what was going on, and some instructions might have helped (yes, i read your description that you left them out intentionally, i get it, but..). still, you pick it up pretty quick just by experimenting. (could perhaps benefit from just alternative symbols - the "X" and "%" are perhaps the least intuitive for velocity scaling, ^v for shrink/grow maybe could be a circle with inward/outward arrows at four corners, etc - fwiw, just ideas). might also help if you could touch/drag *anywhere* on screen to slide the controls (so you don't cover them up w finger). and i'd say you could have gotten away with keeping an entirely monochrome theme (didn't need blue/yellow color on ball/star) just for "style points". anyway, none of the above are "complaints", just ideas for you, it's well-done as is.

Fun game! The physics and flow are super slick! :)

Really enjoyed this game. Like Saffer86 said, that could turn into a full game with more content and simpler controls.

Cool idea, fun to play!

My personal high score was seven. Super fun!

I like the slider controls on this game. Simple fun gameplay that could be developed into an full themed version with more time.

very inovative controls. There is quite a lot that can be done with this!

Kaboom! ;)