Desert Bus is the worst game ever.
The aim of Desert Bus is to drive from Tucson to Las Vegas (360 miles; 8 hours) in real time, without stopping.
If the bus engine overheats due to running off the road or remaining stationary for too long, a tow truck will be dispatched to collect you. When it arrives it will tow you back to the last starting point, and the game ends.
If you do happen to make it all the way to Las Vegas, you get 1 point. Then you get 12 seconds to decide if you want to attempt the return journey back to Tucson. If you don't tap the screen within the 12 second countdown the game will end.
All proceeds support Desert Bus for Hope.