This is just lovely, just a simple idea executed with real charm. Headspin Storybook is a spot the difference webgame, with a storybook motif. By spinning the objects on the right you have to make them mirror those on the left within a time-limit. Succeed, and you go onto another level with more things to spot and/or less time to do it. The design is simple and obviously compulsive, but the ambience is what makes it. Hell, my lunch today was soundtracked by Headspin Storybook bubbling along in pastoral bliss, which I suspect is good for my digestion. Play it at lunch today then. Or, at least, listen to it.