Stop me when you've seen this matchup before: SS3 Future Trunks throws hands with SS4 Goku. You haven't, because Dragon Ball Heroes exists to answer the questions the main series never will. The plot is basically a skeleton holding up 56 episodes of what-if fights, and it knows exactly what you're here for: impossible power combinations and transformations that have no business existing in canon, deployed with zero apology. This is fan fiction with a budget, made by people who get that Dragon Ball stopped being about story the second someone figured out how to go Super Saiyan again.

Super Dragon Ball Heroes is a 56-episode promotional ONA made for the Dragon Ball Heroes arcade and trading card game. Its story adapts the game's Prison Planet arc from Super Dragon Ball Heroes: Universe Mission, and it also covers the manga-original Big Bang Mission and Ultra God Mission arcs. The first episode had an advance screening at a game tournament event at Aeon Lake Town in Saitama on July 1, 2018, and the show was not made for TV broadcast. Expect action and adventure built around the game's arcs.