When I first saw this I thought it was a replacement to the nunchuck of sorts. After looking at it more, I really don’t see the point of this. You have an “analog” stick that just goes over the top of the d-pad and a shoulder button that just causes B to be pressed, cool. Now I can Play Games with Two Extra Shoulder, it would probably do very little. The Grip and the Analog over the Digital is nice, but those shoulders look unnecessary.”]
Source: https://gizmodo.com/cyber-smash-grip-add-on-turns-wiimotes-into-dualshocks-373110