Roulette was designed as the exclusive physical reward mailed to players who conquered Mystery USB. Built within the dimensions of a credit card, the device is powered via USB-C.

The front face features a circular ring of LEDs mapping out a European roulette wheel (0 to 36), a tactile button, and a buzzer for spinning sound effects. Holding down the button charges the launch power; releasing it sends the illuminated ball spinning before it gradually decelerates to rest on a random pocket. The back of the board features a detailed betting layout silkscreened directly onto the PCB.

Etched into the back are instructions for the “BIG WIN”. Hitting zero three times in a row triggers a secret light animation. Photographing this specific display pattern and submitting it unlocks the next tier of rewards.

Field Notes
A small batch was assembled and shipped to winners. The statistical odds have held firm so far: no player has documented a valid BIG WIN, leaving the next tier undiscovered.