Chiang Bros has Ninja Blitz (iTunes Link) in the iTunes App Store for for a limited time. Deal expires July 25, 2010.

It’s total ninja mayhem as players are pitted against a horde of relentless ninjas. To defeat the ninjas, players must use their fingers to flick stars at them to survive the onslaught. Ninja Blitz is an intense and action packed arcade style game specifically designed for the iPhone and iPod Touch.