As it stands, Super Dragon Ball not included Super Xayda 4 converted to its established canon. However, if the official Dragon Ball timeline is to be believed, it is only a matter of time before the events of Super combine with the events of GT. This will give Akira Toriyama and Toyotarou every opportunity to reimagine the plot and transform the classic GT in a way that works naturally with Super. If that is indeed the future of the franchise, one thing is clear: Dragon Ball Super needs to fix a major shortcoming of Super Saiyan 4.
Super Saiyan 4 was first introduced at the end of Dragon Ball GT season one, when Goku was tasked by Elder Kai himself to unlock this divine level transformation after the extremely powerful Machine Mutant, Baby, threatened the whole universe. Goku was able to unlock Super Saiyan 4 after becoming the Golden Great Ape, and then gained full control of his mind. Although the process of unlocking this form is very difficult, at least Goku didn’t have to go through the process of becoming Golden Great Ape every time he needed to reach Super Saiyan 4. In fact, Goku didn’t even have to go through the process. through this process. Super Saiyan transformation progress to get there, he can simply stay in his basic form and power up Super Saiyan 4 instantly. Super Saiyan 4 has become Goku’s main transformation in the second half of GT, which is something that not every unlocked Saiyan can say.
Only Goku can use SSJ4 whenever he wants and Dragon Ball Super needs to fix that
In Dragon Ball GT episode 62 (written by Atsushi Maekawa, directed by Osamu Kasai, produced by Toei Animation), Goku and Vegeta are battling Omega Shenron, although they are clearly outnumbered. Omega Shenron is a Dark Dragon that has absorbed the power of every Dragon Ball to gain ultimate power. Even in Super Saiyan 4 form, Goku and Vegeta can’t match the unparalleled power of Omega Shenron, and that fact quickly becomes clear. In the middle of the battle, both Goku and Vegeta ran out of energy and were unable to maintain their SSJ4 status any longer. However, Goku is not too worried as he just needs some time to regain his energy before performing the transformation again. However, when Goku assumes the same is true for Vegeta, Vegeta reveals that only Goku is capable of achieving Super Saiyan 4 whenever he wants and Vegeta needs the assistance of Bulma’s Blutz Wave Generator. to achieve Super Saiyan 4 each time.
This revelation is shocking and completely unexpected based on what was shown with Goku at the start of GT season two. Vegeta can’t seem to become Super Saiyan 4 just by powering up despite unlocking the actual transformation the same way Goku did. It was a very lame decision. Why isn’t Vegeta able to achieve this form with Goku after first unlocking it? It doesn’t really make any sense, which is why – if the transformation is included at all – it needs to be changed in Super.
Dragon Ball Super did a great job in bridging the power gap between Goku and Vegeta by showing them both literally training with the gods and unlocking the powers of the gods. So the fact that Goku has the magical ability to achieve Super Saiyan 4 whenever he wants for no apparent reason while Vegeta is unlikely to be a huge setback for the series. Only time will tell if Super Xayda 4 will be included in Super Dragon Ball or not, but if it does, then the series needs to fix this one major shortcoming.