https://motherboard.vice.com/en_us/article/ywe3jg/hacked-nes-reverse-emulate-super-nintendo-games

You’re looking at what has to be the ultimate Nintendo Entertainment System hack.

It comes in the form of a custom NES cartridge that grants the 1985 game console advanced technological powers. Tom Murphy VII, the computer scientist behind the hack, believes the technique, which he calls “reverse emulation,” might shed light on the future of hacking the human brain.