Can you reccomend some free Ipod Touch games for me?

Hi, I'm getting a 32gb second generation Ipod Touch for my birthday, and I need some help on some fun, free games to install from the app store. Don't tell me to jailbreak my ipod or anything because I would like to keep the warranty active once I get it. To understand what games I would like, here are a few games I have already tried and liked: maze finger, jelly car, knots, trace, and cube runner. Thanks.