uh...
Well I was hoping for it to be harder. All you have to do is focus on one ball, and just when you click to move it do the opposite with the other one. for examble if you click right on arrows click A with wasd keys. Just keep doing that and all. otherwise I got to about 2000 and got bored, not that intense for a multi task game. But all in all, it is one of a kind, I would like to see more multi task games, just more intense...