Greig has got it to play the ancient Nintendo classic Castlevania. The cube spins as you move the game’s protagonist through the levels: stop moving the sprite, and the cube stops spinning. It’s utterly mesmerising.
The cube uses six Adafruit 64×64 LED matrices, mounted on a 3D-printed frame to form a cube. There’s a Raspberry Pi 4 to play the emulated NES game, which is joined up to the LEDs with an Adafruit LED Matrix Raspberry Pi Bonnet.