Characters like Super Janemba and Gogeta became staple additions to every major Dragon Ball fighting game, ranging from the Budokai Tenkaichi series to Dragon Ball FighterZ and Dragon Ball: Sparking! ZERO . Janemba's unique dimensional portals and sword combos consistently make him a highly sought-after character for fighting game mechanics.

For over two decades, Fusion Reborn existed in an isolated, non-canonical vacuum. Because Goku and Vegeta are both dead simultaneously while Gohan is on Earth, the movie cannot logically fit anywhere within the standard timeline of the original manga or anime.

Fusion Reborn has had a lasting impact on the Dragon Ball franchise. Its influence can be seen in numerous video games (such as Budokai 3 and FighterZ ), where Janemba and Gogeta remain popular playable characters. Furthermore, the film's success solidified the concept of Fusion as a key element of the Dragon Ball mythos.

The film begins in the afterlife, where a careless teenage ogre monitoring the soul-cleansing tank falls asleep and fails to maintain it. This neglect causes all the accumulated evil, negative energy from the souls of the deceased to explode, creating a chaotic, monstrous entity known as .

Goku and Vegeta must battle Janemba's reality-warping forms in a colorful, crystallized Hell.

The massive popularity of Gogeta directly inspired Akira Toriyama to officially bring the character into the modern canon during the events of the 2018 film Dragon Ball Super: Broly .