Goku has exceeded all expectations by achieving his ultimate fighting form, known as Ultra Instinct, in Dragon Ball Super. The concept of Ultra Instinct was first hinted at in a 2016 interview with series creator Akira Toriyama and artist Toyotaro. Originally, Toriyama had planned to introduce a white-haired form for Super Saiyan Blue but decided to reserve it for a later occasion. This eventually became Goku's iconic Ultra Instinct transformation, which garnered immense excitement among fans.
Goku boasts numerous formidable transformations within Dragon Ball lore, with his Ultra Instinct form being alluded to long before its official debut. Against all odds, Goku has transcended to unprecedented levels of power, not only on his home planet but across multiple worlds and universes. He finally achieved his ultimate fighting form by perfecting the Ultra Instinct technique during the epic events of Dragon Ball Super. In a revealing interview coinciding with the initial manga release of Super, series creator Akira Toriyama inadvertently disclosed information hinting at the debut of Ultra Instinct two years prior to its official introduction.
The Ultra Instinct technique made its first appearance in episode #129 of Dragon Ball Super's anime, titled "A Transcendent Limit Break! Autonomous Ultra Instinct Mastered!" in 2018. This transformation, characterized by a rippling silver aura and white hair, immediately became Goku's most potent form yet.
Interestingly, back in 2016, an interview featuring Akira Toriyama and Dragon Ball Super artist Toyotaro hinted at Toriyama's original plans for Goku's appearance. Toriyama had considered giving Super Saiyan Blue white hair but decided against it to avoid color clashes with future adversaries. This decision inadvertently saved the distinctive white-haired look for what would later become Ultra Instinct.
Ultra Instinct, already a formidable transformation, reaches new heights when paired with one of Goku's classic techniques. Toriyama's foresight in reserving the white-haired aesthetic for a future transformation underscores his creative process, often characterized by spontaneous decisions rather than meticulous planning. This revelation adds depth to the anticipation surrounding Goku's evolving powers within the Dragon Ball Super saga.
As Goku continues to evolve, fans eagerly speculate on what color Toriyama will choose for his next transformation. Whether Toriyama had already envisioned repurposing Goku's white hair specifically for Ultra Instinct or was simply contemplating its use for a future form remains a tantalizing mystery. Nonetheless, this glimpse into Toriyama's creative musings sheds light on the origins of Ultra Instinct long before its dramatic debut on screen.