Egg comes from Vector Park which I mentioned in an earlier post. Egg immediately reminded me of Spore in the way that the thing that is on the screen is constantly evolving into something new.
The first thing you'll notice is an egg rolling around the screen following your mouse movements. As time goes by, the egg will change into an egg with an appendage which it hops on, an egg with a foot and then it starts growing other legs. There are probably about 20 different evolutions of the main object, and they all have their own animations for moving around.
Keep watching until it turns back into an egg again, it's worth seeing the whole wacky experience play through.