Patent ID: 7819739

Claim:
A game apparatus comprising: a hand-held electronic game device including a computer, an electronic display operatively connected to said computer, a game card interface operatively connected to said computer, said computer programmed for play by individual players of at least one type of interactive game; a game card for a single play of an interactive game on said game device, said game card having a substrate printed with a plurality of electronic circuit elements that contain data for a predetermined outcome of the single game play that cannot be changed by the player's interactive play of the game, wherein said game card is configured for connection with said interface such that a player can initiate and conduct interactive play of said game by said computer resulting in said predetermined game outcome being displayed on said display; and wherein the game card comprises player-alterable electronic signatures on said game card that allow the player to select game features of said interactive game without affecting the predetermined outcome of the game, the player-alterable electronic signatures based at least in part on a measurable electrical property of at least a portion of said plurality of electronic circuit elements.