Super Saiyan is a transformation and series of transformations used by the Saiyan Race and also Kaddians such as Goku and Xor. The Saiyans's hair turns a shining and fiery gold or blonde color and their power increases immensely. The Kaddian's hair turns Crimson and Red and their eyes turn green and there pupils turn pinkish-purple. The Super Saiyan form is used my many of the powerful Saiyans and Kaddians many times throughout the series and eventually is preceded by even more powerful forms of the transformation. Its immediate processor is the Super Saiyan 2 form. To become a Super Saiyan you must need, such as when Frieza killed Krillin, Goku needed to avenge his death.