One of the problems with virtual reality is navigating it: How do you make it feel like you’re walking around? Short of jacking into the spinal cord, Matrix-style, this has always stymied interface designers.

Popsci is reporting that a hotel in Vegas will soon offer immersive VR built on the Virtusphere, a human-sized hamster ball that calculates position from sphere rotation–like being inside a giant trackball. 360 Virtual Ventures is commercializing the technology for installations like the one at the Excalibur.

Here’s a video showing the device in action:

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