Here are 5 characters who once had a chance to surpass Goku:
Cumber is a Saiyan, trapped by Fu on the prison planet in order to carry out his plan. This evil has trained and achieved incredible power. When he wakes up, he frantically wreaks havoc across the planet and his power is truly terrifying, even overwhelming when compared to Goku.
Although Cumber only appears in the Super Dragon Ball Heroes ad anime, what he shows impresses viewers. Cumber’s potential to surpass Goku is seen during the battle between him and Vegeta on the Prison Planet. To deal with the evil saiyan, Vegeta and Goku have to fuse into Vegito and use Super Saiyan Blue to have a chance to win.
The character Broly first debuted in the film The Legendary Super Saiyan in 1993 and is considered the “legendary Super Saiyan” once every 1000 years. But from Battle of Gods in 2013 onwards, author Toriyama decided to introduce “the right way” Broly in the hit 2018 film, Dragon Ball Super: Broly.
In the new version, the blue-haired guy can easily keep up with Goku. Even the most powerful state of Full Power Super Saiyan Broly can fight a little more than Super Saiyan Gogeta, which has caused our fusion warriors to transform into Blue to be able to confront Broly in Full Power status.
3. Majin Buu
Majin Buu is a character with infinite potential. He can constantly evolve and can even train to unleash his powers as seen in Dragon Ball Super. Majin Buu has a rubber-like body so he can self-adhere to his original form even if it exploded into thousands of pieces or even burned to ashes, he can still regenerate his body. His ultimate is to swallow everything in his stomach to absorb and increase strength.
That’s why there are so many different Majin Buu versions in Dragon Ball. Goku himself also constantly acknowledges the immense power of Majin Buu and considers him a formidable enemy and ally.
4. Android 17
Android 17 is arguably not strong enough to be Goku’s rival. But in Dragon Ball Super, his new improvements as shown in the Tournament of Power gave viewers a different perspective.
The potential of Android 17 to overcome Goku is not only seen in their duel, but also in battles between 12 universes, where Android 17 shines as the savior of the entire universe. Well, not Goku, Android 17 is the last one to stay on the stage and make a wish with the Dragon God.
5. Son Gohan
Since the beginning of the Dragon Ball Z series, many have found that Goku’s son – Son Gohan has the ability to surpass his father. In fact, Gohan’s evolution is said to be the main point of the extension for the Dragon Ball universe. In order to build the next generation, Toriyama made Gohan the first person to reach Super Saiyan 2 and surpass his father in the battle with Cell. Although no longer the one who broke the milestones after that, but Gohan’s achievement is still very memorable.
Perhaps someday we will see Gohan will eventually become stronger than his father, just like in the fight with Cell, with the appearance of Mystic Gohan.