Due to this state being the amalgamation of two different power-ups, Goku's Super Saiyan Blue gets a reddish hue and his regular blue Ki has another, larger red Ki on top of it. Because of the ...

Goku’s blue eyes were a key piece of his Super Saiyan aura, and after years of begging, the franchise is ready to bring that look back to life.

— Dragon Ball Hype. (@DbsHype) May 9, 2021 Throughout the episode Turles argues that a Saiyan is evil at their core, and with the use of this ki, he wanted Vegeta to admit the same.