The comic characters I design transform into manifestations of their superegos, and all of them get long floaty glowy hair in that state.
Examples from anime
Goku’s Kamehameha wave was named after a Hawaiian king and was taught to him by a dude living in the Pacific islands and wearing a Hawaiian shirt.
Gon from HxH got really long hair when he went super mode. really really long hair.
Bobobobobobobo’s power is in his nose hair and afro. He fights against evil bald people.
