The SNES Control Addon for the NES HUB allows the use of SNES Controllers on the NES. Additionally, Famicom Peripherals that use the 15 pin Famicom expansion port can be used together with the Japanese games they were designed for.
If you want to use Famicom Peripherals, make sure to auto-boot into the Japanese game, because game selection menus, like on everdrives, can’t be controlled with something plugged into the Famicom expansion port. Seehereon for information how to auto-boot into games.
