The Ultra Instinct form, which is the most recent transformation Goku has experienced, is less of a physical transformation, and more of a mental state of mind. Super Saiyan 4 eliminates this by giving Goku access to all that power with control. The problem with any Great Ape form is that while in it, a Saiyan user was almost no control over their thinking and emotions. The anime shows that a Golden Great Ape form provides these abilities to a much higher degree. In the manga, the normal Great Ape form gave Saiyans strength, speed, durability, and girth, and well as the ability to shoot an energy beam from their mouths. The strength of the Super Saiyan 4 form is that it combines the raw, unbridled power of the Golden Great Ape form with the focus and control of a Saiyan fighter. Related: Dragon Ball Super Just Proved it Doesn't Need Goku or Vegeta to Be Epic As such, it has yet to be made part of official Dragon Ball canon. What makes Super Saiyan 4 controversial is that only appeared in the short-lived anime Dragon Ball GT. This occurred after his granddaughter, Pan, forced him to remember past times with the family. Lastly, he must transform from the rampaging Golden Great Ape form to Super Saiyan 4. Second, there must be a condition to transform into Golden Great Ape form such as Baby’s attempt to end him. First, some conditions must force Goku to change into Super Saiyan such as seeing Baby demolish Goku's former student Uub. The process to achieve Super Saiyan 4 form in Dragon Ball GT is quite convoluted. In the debate over which form is the most powerful one of the interesting and controversial comparisons is that between the Super Saiyan 4 and Ultra Instinct forms. Over the course of the franchise, Goku has experienced over 10 different transformations, with each adding a different ability or strength. One of the unique characteristics of Dragon Ball’s Goku is his Hulk-like ability to transform into incredibly powerful versions of himself.