Trial Xtreme 2 Winter is now available at the Mac App Store. It requires Mac OS X 10.6.6 or higher and costs US$4.99.
Here’s how the game is described: “Trial Xtreme 2 Winter employs cutting-edge technology, realistic physics engine and star grabbing that tests the players’ bike control and abilities. The game also features high-end graphics that bring the game to life with 30 action-packed levels set in a wintery setting of icy trails and snow-capped mountains.”