Rodney Mullen, the Godfather of Skateboarding, comes to Equestria for a skate demo. Then he saves everypony.

Don't take this too seriously.
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Rodney Mullen is the Skater that put Skateboarding on the map. He invented over 100 skateboard tricks, which include the modern Ollie and the Kickflip.

He is also known as the greatest Street and Freestyle Skateboarder.
Here's a street video, and here's a freestyle video.