The classic FPS retro game Doom has been famous for its capability to run on iPods, old PCs, calculators, and even treadmills. But none would’ve guessed nor even flirt with the notion that it can also work in a digital pregnancy-test stick.

California programmer Foone Turing made this possible by replacing the test’s original CPU and screen and got to play the game in the shell, which runs on a 128-by-32-pixel monochrome display.

Turing explained that the pregnancy tests’ “existing CPU can’t be reprogrammed, and the existing LCD can only show four things, so I had to replace both to make any changes. And the current version doesn’t even fit into the shell! (although I’m certain it will when complete).”

He announced he would share the guide on how to program one yourself, but the general gist of it has been posted on his Twitter so far.


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