As a promotional web series for an arcade game, it is not broadcast on traditional television.
Before the realm's destruction, Demon Queen Towa and Mira send her infant child, Fu , into the timestream to save him, explaining Fu's mysterious origin in later arcs. Character and Transformation Guide Super Dragon Ball Heroes Episodio 20
Xeno Goku and Xeno Vegeta use the Potara earrings to fuse into Super Saiyan 4 Xeno Vegito . Together with Super Saiyan God Xeno Trunks , they overpower the Dark King. As a promotional web series for an arcade
The episode deviates from the main Capsule Corp Goku and Vegeta storyline to follow the . In a different timeline, a team of elite Time Patrollers—including the "Xeno" versions of Goku, Vegeta, Gohan, Goten, and Future Trunks—invade the Dark Demon Realm to confront Dark King Mechikabura . Together with Super Saiyan God Xeno Trunks ,
Complete episode guides and summaries are maintained by sites like Kanzenshuu . Super Dragon Ball Heroes Promotional Anime - Episode #20
Mechikabura releases an evil aura that threatens time itself.