Posts tagged nes-test-cartridge 
Impress your friends and test your controllers with rare NES cartridge
Back in 1988 or so, some guy working in an "authorized Nintendo repair center" saw this yellow cartridge as nothing more than a tool, just another part of his mundane everyday routine of testing the functionality of NES systems. In 2009, it's an extremely rare collectible being sold on eBay for $1,0...
