2016-12-12 Cyber Monday 看板 https://www.microsoftstore.com/store/msjp/ja_JP/cat/categoryID.4807253300?icid=JP_topstripe_CyberMonday_9217_12122016 https://ja.wikipedia.org/wiki/%E3%82%B5%E3%82%A4%E3%83%90%E3%83%BC%E3%83%9E%E3%83%B3%E3%83%87%E3%83%BC