It is one of the most-expensive cartridges from the 8-bit generation to buy nowdays, the Nintendo World Championship cartridge.
Today, someone with lots of money was lucky enough to buy such a cartridge on eBay for $99,902. The cartridge seems to be in good condition, except for the ripped label. It features some DIP switches used to select the time limit of the title.
The image shows a Sony chip in the grey cartridge, back then when Sony was making the sound chips for Nintendo 8-bit and 16-bit cartridges.
The bid for this 1990 cart started at US$4,999 yesterday. It is now the most expensive cartridge ever sold at US$99,902.
[Source]: eBay: NES Nintendo World Championship Cart RARE Torn Label 100% Authentic Adult Owned [http://www.ebay.com/itm/NES-Nintendo-World-Championship-Cart-RARE-Torn-Label-100-Authentic-Adult-Owned-/221357006206?_trksid=p2047675.l2557&ssPageName=STRK%3AMEWAX%3AIT&afsrc=1&nma=true&si=kA7%252BHsE%252F0zUeW25Keknq3ww57CM].