YouTube user チャンネル香香 posted a video, which features him playing Kamen Rider Ghost Special Ore Damashii in the Ganbarizing arcade game.
Ghost transforms into this form using the Special Ore Ghost Eyecon. Said Eyecon is included in the "We Think, Therefore We Are" single's limited edition, which was released last December 9th and cost 1,800 yen. You can purchase it by clicking the link found in the side. [BUY NOW]