version 1.37 The previous face image is added to Card Face option. version 1.36 Play button is added. Banner ad is not shown while playing. Full screen option is added. An interstitial ad is showed when the new game button is pressed. Ad program is changed. version 1.35 The theme option is added in the system settings. version 1.34 The theme is changed. The landscape layout is added. Frame rate option is added.