The transformation causes some stark changes in physical appearance. The trademark characteristic of the transformation is the user's hair: the hair of the Super Saiyan 4 state changes drastically, and grows down to or sometimes passes the user's waist, similarly like the Super Saiyan 3 form. But traces of the Super Saiyan 4 hair can be seen as well, forming bizarre hairstyles. The brow ridge that is seen from the Super Saiyan 3 transformation is visible as well, though not as much as it is with the Super Saiyan 3 form. In this form, the Saiyan's hair color differs from silver to a dark grey, the same goes for the tail and the fur covering the body. A Saiyan in this form also possesses a shadow trim around the eyes and over the eyelids that varies in color, such as a dark bluish-gray or crimson. A similar aura like the Super Saiyan Blue transformation erupts around a Super Saiyan God 4 as well.
Usage and Power
Super Saiyan God 4 is the pinnacle of Saiyan strength. For one to achieve the transformation, the Saiyan must have access to the primal strength of Super Saiyan 4 as well as mastery over their godly ki. The key to the transformation is the complete control over the user's ki, as the wildly different kinds of ki can be overwhelming.
The power of Super Saiyan God 4 is extraordinary, unrivaled by even most deities. While the exact boost in power is unknown it can speculated that the Super Saiyan 4 4000x increase is still in affect with the godly kigiving it an extra boost.
The first person to achieve this form ever was Vegeta shortly after witnessing a time distorted Goku transform. The first time the form was introduced was during the final battle against Xicor when Goku finally managed to escape the Time Vortex. In this form, Goku easily dominated the fight even with the former being in his Super Saiyan Devil form.
The next person to achieve and use the Super Saiyan God 4 form would be Vegeta Jr. After Goku Jr.'s defeat in the Tournament of Time, Vegeta Jr. steps up to take on the challenger. Vegeta Jr. first transforms into a Super Saiyan Rosé as a transition to the end result. Vegeta Jr. would dominate in his fight against Parodo who, in the match prior, fought on par with a Super Saiyan 5 Goku Jr. Vegeta Jr. would go on to defeat Chasmel in the match following; however, he would be defeated by Mira, making the Dragon Team to lose the tournament.