This is absolutely fantastic idea!!
We are mobile game developers, but i didn't even had an idea to port it to phones! You are genius! And on smaller screens it will be easy to play, bc eye will see everything from bigger distance.
I think, we will make local coop, where you can play if your phones are near.
Thanks a lot!!
And thanks for the great motivating feedback! For mobile version we will of cource fix all collisions problems and add better UX like radar, instruction, final knocking off..!