Hey :D I don't know what exactly you have got here, but you DEFINITELY have something. It's super cool how the physics work, I really think you need to work on a theme and try and implement it with this idea of the smiley ball going CRAZY - you need more enemies, I think - you should look at classic Breakout clones (Arkanoid for instance) and maye implement some blocks to smash with enemies behind? Or make more enemies that just fly around into the ball and stuff.
I think you could introduce a funny theme - like the ball could be a spider, with a web thing that bounces around, or, if you use your imagination, maybe it could be a thief, trying to steal jewels from the museum...or how about a SPIDER THIEF??? :D There are so many possibilities, I think you should work on refining the awesome physics idea and also work up a funny, fun theme that people will enjoy spending 20 minutes playing on the way to work on their phone, or when they are looking for some light relief on Steam after a session on Stelleris or something like that.
Awesome idea and great effort though!