Super Dragon Ball Heroes

First and foremost understanding what Super Dragonball Heroes is goes a long way to understanding why it has a fairly shallow and short story and run time. It's a promo anime for the game, not an actual series. Think of it as a fever dream of all things dragonball, nothing really makes sense but it looks cool, you're certain there are a lot if things out of place, and you're likely just waiting for Beerus to wake up and find out you've been in his head the whole time as the punchline to the series.

It's not amazing, but given that it's basically glorified advertising for a game I wouldn't expect a whole lot in the way of deep development. Great if you're just wanting to watch something flashy while on break at work, not so much if you're expecting it to be a sequel to DBS.