In 1991 Nintendo held a second world challenge across 58 college campuses and spring break locations which they called the Nintendo Campus Challenge. Just like the first world challenge a special cartridge was made for the event, and after the event every cartridge was to be destroyed. In 2006 a single copy of the game showed up in the garage sale of an ex-Nintendo employee and is the only known copy of the game.
The cartridge contains Super Mario Bros. 3, Pin-Bot, and Dr. Mario. The official event gave the competitor 6 minutes and 23 seconds to get the highest score total. It starts off with Super Mario Bros. 3 until 25 coins are collected and then goes to Pin-Bot. Once you get 100,000 points in Pin-Bot you move on to Dr. Mario where you then continue until time runs out. The total score is then calculated based on the three individual scores. The Total score is
* Super Mario Bros. 3 x 10
* Pin-Bot x 1
* Dr. Mario x 100