... 10.support two-channel stereo audio11.faster I/O response and more stable systerm opetation12.classified all games to stage, ... flying/shooting, wrestle/fighting, maze/puzzle, adult, sport, misc./ others, and special / classical game list13.each game list can be hided ... can be deleted or called back.15.support simple Chinese and English16.game configurations are adjustable17.support coin counter18.set ...