Barry Kostjens has Push Panic! (iTunes Link) for the iPhone, iPod Touch, and iPad in the iTunes App Store for FREE (regularly $1.99) for a limited time. This deal expires May 30, 2012.

Push Panic is an exciting and colorful new puzzle game that introduces four frantically fun game modes and fast-paced gameplay!

Tap the boxes to blast combinations off the screen before the pile reaches the red panic bar and topples over! Push Panic includes 75 intense levels. Each of the four exhilarating game modes introduces explosive new challenges.