I'm not sure who the cosplayer/performer in question is, but seeing it reminded me of a similar clip in which we do know the star: Chloe Bruce's 2010 masterclass in Capcom-flavoured martial arts, which never fails to blow your socks off, and which I see has never actually been posted here. Time to fix that.
Chloe is a British martial artist who has appeared on TV and in Hollywood movies like the upcoming Thor sequel, Brad Pitt's World War Z and Wrath of the Titans.
She's also done video game work. Played Mirror's Edge? She did martial arts motion capture for the game.
The video above is her most famous Chun Li performance, but it's not the only time she's appeared as the character; she cosplayed last year for a photo shoot with British martial arts crew Thr3guys.
You can check out more videos of Chloe's work on her site.