Doom on a dongle indeed. This most recent adaption of id-Software's classic joins the ranks of other hardware-defying attempts to run Doom on almost anything, including on a satellite, on a pregnancy test, through the medium of gut bacteria, and even on a Lego brick.

A developer could hack into the Apple Lightning to HDMI dongle and run Doom directly on the accessory. According to nyan_satan’s comments in the YouTube video (h/t MacRumors), the $49 Apple Lightning Digital AV Adapter features a custom Samsung SoC with a 400MHz ARM Cortex-A5 core and 256 MiB of DRAM.