It's an interesting game that exploit risk vs rewards, huge pieces can't take every path because of their size..., It would be interesting in a versus mode. Taking big pieces and risk loosing them to the bowling ball, or leave it to your opponent ? Could be cool !
A small downside would be the control scheme, everything on the mouse can be practical, but i like my good old keyboard. But it's just my personal opinion and this will absolutely not alter my rating.
Anyway, it's a cool entry with nice visuals and it definitely fit the theme ! Good job !