Free iPad App: 'Extreme Skater HD'

This is one of those games where the developers eschewed usual button style controls in favor of using the iPad’s accelerometer. You control the player by tilting the iPad left and right, and for some moves you’ll also need to swipe the screen.

Thee are 78 levels, and you can earn points to upgrade your character’s skills, equipment, and even get new skaters. You can find the app in iTunes.

So Apple has been running these free weekly app promotions for a couple months now, and a certain pattern has developed.