This decision was made by the higher-ups of both Bandai Namco and Nintendo and America. Dragon Ball Fusions found itself the subject of censorship in the West, when all swords in sword attacks - even by iconic characters such as Trunks - were changed to resemble bokutō instead.In the localized version of the game, Son Gokū refers to Karin as 'Whiskers', most likely a nod to the Harmony Gold dub of Dragon Ball, where Karin was known as 'Whiskers the Wonder Cat'.The anime quiz from Giru within the game refers to Dragon Ball Super as 'Super Dragon Ball' this is incorrect, and Super Dragon Ball is in fact an actual game within the series.As a result it is the first game in which Goku has interacted with both of his birth parents, though both Bardock and Gine chose to conceal their identity as his parents from Goku when they encounter his younger self.
It also marks the first time since Dragon Ball Minus that Gine has interacted with her youngest son Kakarot, though it is the first time she has interacted with him after his amnesia and becoming the pure hearted Goku in any media.