physic game thing

The video we saw was amazing because it looks like a simple game but it is so hard.I want to play that game.I like how its a touch so it is exactly as u do it.I like the way it was done.

The google science fair seems fun.I don't know if i want to join though.It is for people all over the world,I am really scared to enter because its me versus like a million people.If  was going to be in it I would do something with robots.I really want to make a robot.