A super rare NES cartridge has been listed on eBay, where its expected to fetch a massive amount of money.
There was only 116 copies of the game Nintendo World Championships ever manufactured, as competition prizes back 1990, and were never available on general sale.
Despite the fact the label is torn and "Mario" has been scribbled on it with ballpoint, the "super-rare" nature of the item means that it is very likely to raise a huge amount of interest - "This is quite unfortunate but happened many decades ago," reads the description, which adds that the original owner didn't have "a clue what they actually had".
The cartridge features shortened versions of Super Mario, Tetris and Rad Racer. It was on these three classics that competition entrants were tasked with scoring the most points in six minutes, with the winner receiving various prizes. All 90 of the semi-finalists got a grey cartridge like the one on auction, though some golden cartridges were made for a separate Nintendo Power competition.
The auction ends tomorrow, with a high bid of $6,300 at the time of writing. The last time one of these was publicly sold was in 2011 at a charity auction, where it fetched $11,000. That one was in better condition, however.
If you wanted your chance to play as the generic minifigures of the Lego world, this is it.
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A mix between Tetris and Lemmings that causes quite a challenge.
A quick paced game where you have to balance your temperature and move your people.
One player, many voices.
A calming game in which you grow a tree - without killing flowers.
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You get a rundown on all the games in the running.