Unless you've been living under a rock for the last few years, or were stranded on some island during this year's E3, you probably need no introduction to the newest fad in the gaming industry, virtual reality. The idea behind virtual reality, if simplified down to the basics, is the same that inspired motion controls way back in their time – immersion.
However, where motion controls failed miserably, VR is actually seemingly succeeding. VR works best with games in first-person (obviously), and the idea is to truly make you feel like you are in the game, by covering your eyes completely with VR goggles, and have the movement of the camera track the movement of your head. These are the basics, at least. VR has been taken further with ideas like gun-shaped controllers, pain-feedback and walking frames.
In addition to all this, some genius thought that combining motion controls with VR would be a good idea, but thankfully there's just the one.