Each retro arcade button acts as a pixel that can be activated or altered with a single touch. (visualnews.com)
Additionally, the arcade stick ports the Xbox One controller's inputs — X, Y, A, B, RB, LB, RT, LT — into arcade buttons located atop the faceplate which is more accessible for disabled gamers who face inaccessibility with using the triggers and shoulder buttons of a controller. (dagersystem.com)
The reason I included it here, though, is because it's got a joystick and 4 clicky arcade buttons built in. (vghangover.com)