Controllers
'Anything you output can be a trigger, and with two or more triggers, you can make a controller: your emotions, your feelings, your eye movements. Value your outputs, take control' VB
Motion Capture
Haptics
Hand Tracking
I got punched by my controller for losing the plug adaptor...it was charged with battery.

But as if this vast local power in the tendinous tail were not enough, the whole bulk of the leviathan is knit.
Nintendo Switch
VR, AR & MR
Misc