Find and fix all of the differences under the time limit, and you're rewarded with a rainbow or a star shower, depending on whether it's day or night in the little storybook world. Oh, and you get points. The faster you finish, the more points you get. Over 20 levels of gameplay, the images become more intricate, your time limit gets lower and there are more discrepancies to find.
It may seem simple to just find the object that doesn't match its opposite and click on it, but these little pop-ups are tiny and the differences between them grow more subtle with each level. When you hit Level 10 or so and you're faced with a page filled with nearly identical flags, you may resort to clicking around like a maniac. Don't despair, however, since there's no Game Over. If time runs out, you simply lose 1000 points and restart the level with a different layout altogether.
Headspin Storybook combines fabulous graphics with a creative twist on a worn-out genre, providing a 20-30 minute diversion that you'll want to keep playing until the story ends.