I am amazed on level of support you gays and gals give my. It was my first Game Jam and first time I made a finished product using Unity(I started playing with it in January).
Regarding physics, well it was not that much hard but may be reason is: I am mathematician :)
Joining that jam I was planing to try build something playable during limited time span. And I made a deal with myself: in case if I will get good feedback on mechanics - I will rebuild it prettier in several month span and will publish it on Steam. So yeah, I know what I will do in my spare time soon ;)