In the 16 years since Super Smash Brothers: Melee came out, it has gotten harder and harder for Smash tournaments and pro players to keep using the controller for which it was originally made. GameCube controllers are getting old. The best ones are are hard to find and expensive to maintain. And some players complain that they cause hand pain.

And it's mesmerising.

As soon as Nintendo released a demo for Smash Bros., it seemed like technical-minded people rushed to find ways to be able to play the game as it was meant to be played: with a controller. And now you can do it too... provided you have the right tools and don't mind fiddling with the insides of your 3DS, that is.