Short and sweet: Gesundheit! is one of the best games for iOS devices, period. And you should get it. It is visually intriguing, fun, silly, interesting, challenging, engaging, and wildly addictive. And this week (that is to say, until November 27th) it is a measly 99 cents for either the iPhone/iPod version or the visually enhanced iPad version. If you have both devices you should really buy both – a buck-ninety-eight for something this good is a steal. Lifehacker readers excepted, of course.