It’s not unusual to see an easter egg—a deeply hidden, usually silly feature hidden inside a computer program—like a computer game, DVD menu or, sometimes, Google’s front page.
You don’t typically see them inside of a car, but Tesla Motors is all about changing the driving experience.
The company’s CEO Elon Musk tweeted today that the car’s new software update includes a cool throwback any Nintendo fan will recognize: changing the car’s display to reveal a Rainbow Road, a psychedelic effect similar to the final stage in Mario Kart.
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Activate autopilot 4X in quick succession for psychedelic cowbell road. And, yes, we are adding more cowbell soon.— Elon Musk (@elonmusk) April 11, 2016
Users will need to have the latest version of the car’s operating system installed to make the trick work.
Other easter eggsthrown into the car’s software include turning your car’s avatar into the submarine from the James Bond film The Spy Who Loved me and a cool tribute to writer Douglas Adams.
Watch the effect in this YouTube video below: