Virtusphere consists of a 10-foot hollow sphere, which is placed on a special platform that allows the sphere to rotate freely in any direction according to the user’s steps.
Wearing a wireless, head-mounted display the user is able to walk and run being immersed into virtual environment. The
movement by the user is replicated within the virtual environment. The same hardware set can be used for different applications by changing only the software applications. http://www.virtusphere.com/