The objective of the game is to drive a bus from Tucson, Arizona to Las Vegas, Nevada in real time at a maximum speed of 45mph. The feat requires 8 hours of continuous play to complete, since the game cannot be paused.
The bus contains no passengers, contains little scenery (an occasional rock or stop sign will appear at the side of the road), and there is no traffic. The road between Tucson and Las Vegas is without exception completely straight. The bus veers to the right slightly; as a result, it is impossible to tape down a button to go do something else and have the game end properly. If the bus veers off the road it will stall and be towed back to Tucson, also in real time. If the player makes it to Las Vegas, they will score exactly one point. The player then gets the option to make the return trip to Tucson—for another point.
-------------------------------------------------------------------------------------------------------------
网上找到的wiki
