Great fun... An ideal game for someone new to the world of wii as it builds you up to the challenges and how the controls work.
There is an underlying story and it really is cute and funny because there are different characters (as in the movies) and they have their voices and different strengths/attributes which are used throughout the game.
I hadn't actually watched Madagascar prior to playing the game, but it looked funny and made me want to go out and watch it - which I did... I had an idea of what was going to happen, but it was still fun to watch.
The graphics are quite good, and the jokes/humour are funny enough across all ages. The game can be saved at regular intervals so that it can be played as and when, and it can be played in two-player mode, or individually.
Not one that I have played since completing it to be honest, but was still good fun.