Trackball Controller Xbox 360

By Xah Lee. Date: . Last updated: .

This one is invented by Jay Garcia around , but funding never came.

trackball controller xbox360 2013-88040
from “trackballcontroller.com” dated .
trackball controller xbox360 2013-66004
〔image source http://www.stageselect.com/N5153-trackball-controller-the-best-controller-for-call-.aspx〕

Here is the prototype playing first-person-shooter game.

XBOX 360 Trackball Controller mVbQ

another one:

XBOX 360 Trackball Controller 5N3j