The *Dragon Ball Daima* finale delivers an intense showdown between Gomah and Goku, showcasing Goku in a new form that fans hoped would finally address the absence of Super Saiyan 4 in *Dragon Ball Super*. In this climactic episode, the Z Fighters regain their adult forms thanks to Glorio's wish. Despite Vegeta's valiant effort to defeat Gomah using Super Saiyan 3, it's Goku who steps up to the plate, utilizing the power bestowed upon him by Neva in the previous episode, which he dubs "Super Saiyan 4."
In the battle, Goku unleashes his iconic Kamehameha, piercing through Gomah and the Demon Realm itself, setting the stage for Picollo and Majin Kuu to deliver the final blows. With Gomah defeated, the Demon Realm is liberated from his rule. However, the episode takes an unexpected turn by not clarifying the exclusivity of Super Saiyan 4 to the Demon Realm or Neva's involvement. Instead, Goku casually explains to Vegeta that he achieved this form through training post-Buu, leaving no room for a memory wipe or any other explanation that could bridge the gap with *Dragon Ball Super*.
The introduction of Super Saiyan 4 in *Daima* raises significant questions about its canonical alignment with *Dragon Ball Super*. It's puzzling that Goku wouldn't use such a powerful form against Beerus in *Super*, especially with the planet's fate hanging in the balance. Even if Goku were to forget, Vegeta's reaction to being outdone yet again suggests that this form should have been relevant in *Super*.
A glimmer of hope for resolving this inconsistency comes from the post-credits scene, which hints at the Demon Realm's lingering threat with two more Evil Third Eyes. Should *Dragon Ball Daima* return for another season and these objects fall into the wrong hands, it could provide a pathway for Super Saiyan 4's reintroduction and subsequent loss. This is purely speculative, but without such a development, *Dragon Ball* risks a significant plot hole that could fuel endless debates among fans.
In essence, *Dragon Ball Daima*'s finale does not offer a clear explanation for Super Saiyan 4's absence in *Super*, leaving fans with more questions than answers. *Dragon Ball Daima* is currently streaming on Crunchyroll.