Works fine on Mac and decent game
I think it was more designed for tilt devices but works ok playing with keyboard.
Graphics are nice, sound and music is fine and game play is like the video so if you think that looks like fun then you'll probably like the game.
I'd give it 8/10, 2 marks deducted because I think if you fail, it should re-iterate the goal and although I'm enjoying it, it seems like one of those games I just never get around to completing because I get bored.
It works find on Mac and given some of the releases that claim to work okay on Mac, I thought it was worth mentioning. Valve need better quality control, this is flawless for me on Mountain Lion.