Protodude from Mega Man fansite Protodude’s Rockman Corner has discovered a pretty unique Mega Man fan-made item. Highlighted here is a Mega Man NES cartridge that is actually an external 500 GB hard drive. So if for some reason you need to hide 500 GB of…erm, well, anything really this is probably one of the best ways to go. The USB port is also hidden on the side, creating the perfect illusion of an unassuming NES cartridge. And just in case you were wondering, no, the game is no longer a functional NES cartridge.