An apparatus and method for communicating between a hand-held electronic game apparatus and other electronic systems is described. Small hand-held electronic games, preprogrammed with a single game, may be linked together through a communications unit to engage in interactive gaming between two users....http://www.google.es/patents/US5971855?utm_source=gb-gplus-sharePatente US5971855 - Apparatus and method of communicating between electronic games
Apparatus and method of communicating between electronic games
