Super Saiyan 4 is Goku's ultimate form that he reaches at the end of Dragon Ball GT. He is extremely powerful and he is nearly unbeatable. The only entity who could stand a chance against was Evil Shenlong. After a long and tough battle Goku eventually had to fuse with Vegeta in order to create Super Saiyan Four Gogeta.

Super Saiyan 4 Goku looks totally different than Goku's other transformations. At first he has to power up all the way to Super Saiyan 3, then he needs to transform into the Oorazu, a.k.a the BIg Monkey. After he has done that he needs to maintain enough control over his animal instinct and power up to Super Saiyan while in Oorazu form.

Once he has accomplished this, he can continue to power up until he transforms back into his humanoid form. While in Super Saiyan 4, Goku has red fur covering most of his body, his eyes gain a red underglow, and he regrows his tail as well.

Super Saiyan 4 Goku Techiniques:

• Kamehameha x100 - Due to the immense power Goku can produce while in SSJ4, he is very careful before he uses this as he can destroy entire solar systems with one beam.