You need a steady hand and bags of patience to get far in this game. Sadly I didnt devote much time to this after failing abysmally at the first few levels.
Having said that, the game is stunning. The mercury changes colour and moves very fluidly, you can even see the little swirls on the outside of it like real mercury has. It is easy to get the hang of the controls and you can dive straight into the game without going through a long tutorial first. The object of the game is simple - get your little blob of mercury from one end of the maze to the other intact. However, put in your way are lots of obstacles and things to fall off of!
If this game had multiplayer levels, I would have loved it and probably spent more time playing. As a single player, I gave up pretty quickly.