Maker James Brown is continuing to iterate on the idea of turning LEGO’s iconic computer bricks into actually-functional devices, taking what was once a simple animated display and making it a fully self-contained computer capable of playing Doom — using an accelerometer as its input.

“I hooked up the accelerometer, so Doom is now ‘playable’ entirely on the [LEGO computer] brick,” Brown explains of his latest efforts with the project. “The capacitive touch wasn’t tuned very well, so it’s a bit shooty.”

Brown’s work started last year with an attempt, wildly successful, to create a technological update for the computer, radar, and other display-type LEGO bricks — originally created from plastic with the “display” simply painted on the front.