The build relies on the Retro-Go firmware for ESP32 devices, which can emulate a range of machines, from the Nintendo NES and Game Boy to the NEC PC Engine, Atari Lynx, and, yes, Doom itself.

Say what you like about the Sega Saturn, but I'm thrilled that Retro-Bit has recreated the controller. Not only has the accessory maker made something that looks like one of my favorite gamepads ...