Slowly getting there, gameplay is starting to be fun. At least for me.
Tweaked some more and added silver coins. If you want to reach a high score you should be aiming for the golden ones, they worth ten of the silver ones.
Next up on my to-do list are audio and visual improvements.
I also built a non-optimized WebGL version. You can check it out here, feedback is appreciated: hmgames.lupus.uberspace.de/bat_n_ball_ii/