Mobile gamers looking for a truly masochistic experience should consider checking out the Desert Bus app. The Desert Bus app is an Android and iPhone port of the famed 'Penn & Teller's Desert Bus' mini-game. The game casts you as a bus driver on a harrowing journey from Tucson, Arizona, to Las Vegas, Nevada.
The game is played from a first-person perspective and unfolds in real-time. The amount of time it takes to drive a bus from Tucson to Las Vegas is eight hours. Should you somehow veer off the highway (the bus pulls to the right) you will be towed back to Tucson in real-time. How's that for challenging? The game is out in both the Android and iTunes app stores now and sells for a buck.