Even thought you can fit a iphone in a nintendo cartridge . It still seems really wired seeing a an entire fully functional NES console to fit into a Nes Cartridge.Its biuld only using the one chip that includes a 60 pin famicom game port, which in could easily be converted to play PAl and NTSC. Full Story can be found here http://www.instructables.com/id/NES-in-a-Cartridge/