Marvel Entertainment has Avengers Initiative (iTunes Link) for the iPhone, iPod Touch, and iPad in the iTunes App Store for FREE (regularly $6.99) for a limited time.

Level up, gear up, and fight as CAPTAIN AMERICA or HULK in the latest installment of Marvel’s episodic series built exclusively for touch screen devices. Track down and defeat some of the world’s most notorious villains and help THE AVENGERS pull the world back from the brink of catastrophe.