When Frieza blew up Planet Vegeta a few survived and also a secret saiyan called a mega saiyan his name is Rigous [asperigous] its basically a saiyan that looks like a saiyan with clear hair with black strokes the eyes puple is yellow the teeth are green . A mega saiyan power level is 999999999999999 times legendary Broly but they are like Goku and don't like to fight because they know that one hit the person dies. So they all hid underground.