Seattle-based company GloVentures plans to release early 2005 Glofun RayGun, a GPS ghost-hunting game for mobile phones.
A mobile loaded with RayGun software emits “spectral” energy that lets you attract and track ghosts. But that energy annoys the ghosts, so you have to “ionize” them before they get to you.
To aim the raygun at a ghost, you must physically move toward it. The faster you walk/run, the higher the raygun’s range.