With wireless DB9 and USB-A adapters ... from the Atari 2600 or other early systems, even allowing gameplay on non-Atari console games. Like its contemporaries, it's a controller made for games ...

Instructibles user [Danjovic] managed to get his hands on an Atari 2600, but all the joysticks ... generation of gaming and decided to us an NES controller instead. This was done fairly easily ...