Your iPhone is more than capable of serving as a mobile gaming device. The App Store has a ton of sophisticated, well designed games available for you to download. The Cube Racer is one addictive game for this platform. It may not have 3D graphics and complex game play but it will test your skill and perseverance if you play with it long enough.
Cube Racer is all about making your journey through cubes. It looks very simple on paper but can be extremely challenging to finish the game. You get multiple cube colors and patterns to keep you going. The longer you survive in the game, the more difficult it gets. Cube Racer does support Game Center leaderboards so you can compare your results with those of others.
We did find Cube Racer to be quite challenging. It is one of those games that makes you want to go back for more. It does not have out-of-this-world graphics by any means. But its addictive nature more than makes up for that.
P.S. Please feel free to post your score if you have played this game.