This isn't a game, but I wanted t et everyone know that Brushes is on sale for $.99. It's a great app and I would definitely consider it a must buy if you're at all interested in a drawing app. Even if you're not, at $.99 it's too good to pass up. It's one of my favorite apps. I keep on my first homescreen with all the apps I use most. http://phobos.apple.com/WebObjects/MZStore.woa/wa/viewSoftware?id=288230264&mt=8
Yep I bought it as well. It's got everything i wanted on the go. It is very fast and the interface is incredibly intuitive. I recommend this one.