Penguin Airborne

Penguin Airborne is an app for the iPhone, iPod touch, and iPad developed by Spokko.

Gameplay
In Penguin Airborne, the goal is to get to the ground safely without being the last. To jump, you tap, and to open up your parachute, you tap again. To speed up everything on the way down, you press and hold. Releasing will result in normal time. When all of the parachuting penguins have landed, the last one to land gets hit by a bullet. As you complete low ranks, higher ranks are unlocked. To finish the game you need to become General, which is the highest level.

Usage of Game Center
Penguin Airborne uses Game Center for achievements and a leaderboard.