During the WWDC Steve Jobs showed off many apps and games that were to come to the iPhone, and one of these included Kroll by Digital Legends. Kroll is a new 3D adventure game that will cost you 8$.

The game is divided into three chapters with 3 levels each and a boss battle. The game is controlled by 6 icons along the left and right sides of the iPhones screen. These icons include left / right movement, left / right quick attacks, and left / right delivery of slower, more powerful attacks.

App Store link: Kroll.
Price: 7.99$

Here are two video links (thanks emma):
     http://www.youtube.com/watch?v=tUWRU_cSc2s
     http://www.youtube.com/watch?v=Leq76WolEVc