Another device, Canon's Pixma printer, has joined the endless list of things that can run Doom. We might still have to wait for the "police radar gun" but security researcher Michael Jordon's mod is just as good.
The mod, which took months to create, was made to demonstrate certain security issues. You can read about these in detail here (according to them, Canon responded they're planning to fix these issues on future printers), but it's much more interesting to see what Doom looks like on a printer display:
It's blocky. But you can still recognise the walls, the pistol and the monsters.