"Dark Dragon Ball" (暗黒ドラゴンボール Ankoku Doragon Bōru) is the second chapter of Super Dragon Ball Heroes: Dark Demon Realm Mission!.
Using the energy that they had gathered from strong warriors, Towa revives Mechikabura in the Demon Realm. However, Mechikabura is weak due to his old age and so Towa tells him to use the Dark Dragon Balls to restore his youth, to which Mechikabura says he will do so and then get his revenge on the Supreme Kai of Time. However the Dark Dragon Balls disperse, and Time Breaker Xeno Dende who created them explains that they must first be collected. Towa apologizes to Mechikabura, but he states it's fine and that he has already found one. Before Towa and Mira leave to collect the Dark Dragon Ball, Mechikabura grants Towa the power of a Demon God.
Meanwhile, at the Time Nest, the Supreme Kai of Time Chronoa is checking the scrolls and finds that one history has changed. She is greeted by Xeno Goku and Xeno Trunks who say it's been six months since they last saw her but Chronoa tells them that she changed the flow of time in the room they were training in and so they have only been away three days. She sends Xeno Goku and Xeno Trunks to deal with it, refusing to come along herself as she has been overworked checking all the scrolls.
Trunks and Goku travel back in time to Age 762 and arrive on Planet Namek, where they find that Xeno Frieza has merged with a Dark Dragon Ball. Now several times more powerful than before, he has now easily taken down Super Saiyan Goku. Frieza prepares to kill Goku but is intercepted by Xeno Trunks, however the attack has no effect and Frieza manages to toss him away. Xeno Goku steps in and knocks Xeno Frieza away, but the tyrant recovers and headbutts Xeno Goku. Super Saiyan Goku stands up once more, not really sure of why there is another version of himself there and he suggests that he and Xeno Goku combine their attacks. Both Gokus fire a Super Kamehameha at Frieza, who responds by taking on his 100% Full Power form and holding the two Kamehamehas back with his hands. This gives Trunks an opening and he slices Frieza in half from behind, detaching the Dark Dragon Ball from him and allowing history to proceed as normal.
Demon God Towa and Mira appear and Towa picks up the Dark Dragon Ball, easily taking down Trunks with her new Demon God power. They prepare to leave, but Trunks fires a Kamehameha at Towa. Mira gets in the way of the attack, seemingly sacrificing himself to save Towa from the blast, his apparent death angering Towa. Towa retreats with the Dark Dragon Ball and with the battle between Super Saiyan Goku and 100% Full Power Frieza continuing as it should, Xeno Goku and Trunks return to the Time Nest.
Towa arrives back in the Demon Realm to give the Dark Dragon Ball to Mechikabura, who reveals that he has gathered an army to aid in the collection of the remaining six Dragon Balls.
- Goku (Super Saiyan) vs. Xeno Frieza (Final Form)
- Goku (Super Saiyan), Xeno Trunks and Xeno Goku vs. Xeno Frieza (Final Form/100% Full Power)
- Xeno Trunks vs. Towa (Demon God) and Mira
Game and Manga differences
- In the game it is only mentioned that Xeno Dende created the Dark Dragon Balls.
- The battle between the Time Patrol, the Dark Empire and Xeno Frieza is much shorter and greatly differs from the game as well, as it takes place on Namek in the past, Trunks is the only one to ever fight the Empire and Towa and Mira are the only people to fight him
- Zarbon and Dodoria appeared with Xeno Frieza in the game.
- Mira being apparently destroyed by Trunks's Kamehameha is exclusive to the manga, as in the game he unambiguously survives through the entire saga.
- This chapter and it's events are loosely based on the Demon Goddess Towa Saga added in SDBH Mission 1.
- DDRM Chapter Listing. db-z (May 2017).