But for those in the video game world, this cartridge is worth thousands of dollars.
It's a super-rare Nintendo World Championships cartridge, and you can buy it on eBay for a paltry $5,500 (at the time of this writing). That's quite a bargain, considering people sometimes pay twice that. In 2011, someone bought a copy at a charity auction for $11,500.
In 1990, the Nintendo World Championships toured the country with a custom game. They asked players to beat levels in Super Mario Bros., Rad Racer, and Tetris in less than 7 minutes. Remember the movie "The Wizard"? It was based loosely on that.
The finalists and winners each got one of these cartridges - 116 in all. Nintendo also put 26 cartridges with a gold Legend of Zelda-style shell in its Nintendo Magazine and gave them away as prizes.
If you want to own a piece of rare history, you'd better hurry, though. The auction ends Saturday.