She was named "Karissa The Destroyer" and she had been busting reputations and egos at a pre-release event for Super Smash Bros. for Wii U at a GameStop store in West Hollywood.
The fact that she was only 10 years old and taking down pro-gamers who had been playing the game for years and making them look like newbs meant that she caused quite a stir.
Everyone was taken with it, she was getting called 'The Chosen One' and people were ready to raise her high on their shoulders and declare her the champion of champions.
D'Ron "D1" Maingrette, who's a Super Smash Bros. player and minor celeb on the scene, took to social media to tell the world of her prowess.
It was all building up to a great urban legend-esque type story that sounded too good to be true.
As did others, like comedian Sky Williams.
But generally when something seems too good to be true, it is. And this was no exception. Because it turns out the whole thing was a PR stunt, staged by GameStop for an upcoming commercial.
A pic of the casting call looking for actors for the hoax was posted to Imgur.
And so it was sadly revealed that "Karissa The Destroyer" is in fact Karissa Bannister, child actor not child gaming genius at Super Smash Bros. But how the hell did they do it?
Well, according to this Facebook post by Sky William who figured it out on the day, it involved another player—a real pro— controlling it for her who couldn't be seen.
Her controller wasn't even plugged in.