Ninja Up by Gameloft has bounced its way into the App Store.
Players control a little ninja with amazing ninja jumping skills, and to help the ninja ascend to the heavens, they must draw lines for him to spring off of. He must avoid obstacles, ufo's, and other ninja as he ascends.
Truly ambitious ninja can fling themselves all the way to the moon, so bring shame upon your friend's ninja by jumping higher than them.
You can find Ninja Up on the App Store now, for free.