For a long time, as a western Dragon Ball fan, I’d see these videos pop on on Youtube. There was often little to no context to them. They seemed like these wondrous pieces of fan fiction turned into real art and animation for Dragon Ball. Eventually, down the line I realised they were trailers for a Japanese arcade game that was skyrocketing in popularity: Dragon Ball Heroes.
The card based video game had these little trailers associated with them, ones that seemed to become more and more outlandish and fantastical from a fan’s point of view. It was like looking at a young fan’s toybox being turned into well animated snippets. So, when the announcement that Dragon Ball Heroes was getting an actual promotional anime, everyone’s interest was piqued, mine included.