Switchball

Physics-based puzzler. You can increase or decrease the mass of your ball

I'm halfway through the PC version of the game. I was going to give the game to my niece but the difficulty ramps up.

There are 50 levels. I finished level 1 in a little over a minute but level 20 took me 25 minutes.

Soundtrack:

http://www.youtube.com/watch?v=tfboIgO33fc

Playthrough:

http://www.youtube.com/watch?v=N7GDIZluYOU

Amazon.com:

http://www.amazon.com/Switchball-Pc...TF8&qid=1346804634&sr=8-1&keywords=switchball

Reminds me of Ballance