research

from looking on the web ive found that a group of researchers made a virtual reality version of pac man using glasses that displayed virtual objects in front  of the 'players'  the system uses GPS,bluetooth, and a local network to link all the players together and establish their positions.
(http://edition.cnn.com/2004/TECH/11/16/explorers.pacman/)


(http://www.gizmag.com/go/3512/picture/7238/)


there already is an app for android smartphones that uses AR to display a pac-man style game the only issue with this is that the collectable objects are not displayed in front of the user but displayed in the centre of the users location thus the user needs to in the right position to get the full affect of the VR
(http://www.silicon.com/technology/mobile/2010/10/05/photos-augmented-reality-apps-for-iphone-and-android-39746439/)


where as with an app that uses a birds eye view or map view the user just needs to be at that location because the systems uses a vague position of the user