Tetris has been discovered built into the dashboard console of a series of Russian-made vans and trucks.
It is possible to play Tetris on the speedometer screen of these vehicles by following these steps:
1) Turn the ignition on
2) Start the car
3) Activate the right turn signal for three blinks
4) Two click the trip odometer reset twice
5)Push the clutch five times
6) Rev the engine to 2000 RPM while turning on the left turn indicator
Once you have unlocked the game, it can then be played using the tiny adjustment dials on the console.
Original article: https://www.gameplanet.co.nz/news/g59e3d0d5267a8/A-Russian-car-company-hid-Tetris-in-its-dashboard-computers