TightWire is a challenging, tilt-based game that revolves around an extraordinarily simple concept: tightrope walking. Using the accelerometer, your task is to guide a rather obese character as he fights gravity and struggles to cross the chasm between buildings. Surprisingly enough, it's addicting, challenging, and definitely polished.
When you start each game, a brief image overlay appears on the screen, explaining the tilt controls: side-to-side balances your character, while tilting toward or away from you defines his speed. Tap the screen, and the guide fades away, leaving you alone with the "daredevil" and a very high tightrope.