One of the biggest hits of the Xbox Live Arcade, Trials: Evolution is the ultimate test of patience and skill. It's also extremely addictive, and the online leaderboards were the cause of many rivalries within friendship groups. The player controls a motorcycle while traversing along a series of increasingly difficult tracks, filled with a variety of obstacles. Although Trials: Evolution featured 3D graphics, the gameplay was entirely based on a 2D plane, bringing the focus entirely on the bike's pitch and acceleration. The multitude of online features, challenging levels, and ability to make and download user-created content made Trials Evolution a fantastic package. It might have resulted in more than one broken controller, but Trials Evolution was one of the deepest, most replayable downloads ever available on the Xbox Live Arcade.