Try the following:
Tiny Wings - http://itunes.apple.com/us/app/tiny-wings/id417817520?mt=8
Cut the Rope (and all it's variations - some are free) - http://itunes.apple.com/us/app/cut-the-rope/id380293530?mt=8
Going Nuts - http://itunes.apple.com/us/app/going-nuts/id474054485?mt=8
Tiny Wings - http://itunes.apple.com/us/app/tiny-wings/id417817520?mt=8
Cut the Rope (and all it's variations - some are free) - http://itunes.apple.com/us/app/cut-the-rope/id380293530?mt=8
Going Nuts - http://itunes.apple.com/us/app/going-nuts/id474054485?mt=8