I try out many iPhone games because often times they are free and are a great way to spend a few minutes when your waiting for something or before bed. Fruit Ninja is a popular game I downloaded for free to test out.

Basically you swipe your finger across fruit to cut it like a Ninja. You get points for doing that. It gets harder or something and then you slice more fruit with your finger. You get ranked for your fruit Ninja fu.

Its no longer on my iPhone.