Funny twisted head illusion

One of my magician friends told me about this very funny twisted head illusion using only a hat as cover! Great idea. Performed by the magician Shinpei Ogawa.

マジシャン友達に教えて貰ったイリュージョンの動画だ。帽子だけでカバーする考え方が凄いね！小川心平さん、センス良いな！笑