A video game device comprises: a monitor; a display unit for displaying an event place where a specific event is performed on the monitor; a sound output unit for outputting a background sound relating to the event; a memory for storing a background sound data relating to the event; an event place determining...http://www.google.de/patents/US6857960?utm_source=gb-gplus-sharePatent US6857960 - Video game device, background sound output method in video game, and readable storage medium storing background sound output program
