Penn and Teller's Smoke and Mirrors: Desert Bus
With any list, you've gotta have a wild card or a bonus round, if you will. I want to crash through the gate on this one and play my card early. Desert Bus was actually a mini-game in a larger, unreleased title called Penn and Teller's Smoke and Mirrors. In it, you play as a bus driver heading to Phoenix, Arizona from Las Vegas, Nevada. The bus has a tendency to move slightly to the right of the road, so you've got to keep your hands on your controller at all times. If you swerve, the bus's engine will stall and you'll have to start over from the beginning. So patience and caution are your greatest virtues here, especially since the game runs in real time. This is literally a game where you twitch your controller every so often for eight hours straight. When you complete a trip from Las Vegas to Phoenix and back to Las Vegas, you'll get one point.
Desert Bus is 99 cents on Android or iOS, or you can easily find it to play online for free. Eight hours of play for nothing or next to nothing is pretty good.