Dai-Satan (lit."Great Satan") is the ultimate evil of Zyuranger. Taking the appearance of a massive disembodied head; Dai-Satan first appeared 170 million years ago when he bestowed great magical powers on Queen Bandora of the Fairy Tribe to lay waste to Earth, manipulating her through her grief over the death of her son Kai. After Bandora was sealed away by the Guardian Beasts, Dai-Satan was banished by Ultimate Daizyujin but managed to split him into his three lesser aspects.