Who are you? Zero:
Zero, Ultraman Zero, son of Seven!
Ultraman Zero is the main character of a sub-franchise of the Ultra Series by Tusburaya Productions, mainly consisting of films. Zero is the son of Ultraseven.
- Mega Monster Battle: Ultra Galaxy Legends (2009): Thousands of years ago, the dark Ultra Warrior Belial rebelled against the Land of Light after gaining the power of Reionics. Wielding the Giga Battle Nizer, he commanded an army of monsters. Belial was defeated and imprisoned by Ultraman King. Now that Belial is freed, he attacks the Land of Light once again. The Ultras' only hope lie with Rei, the human Reionics and Zero, an Ultra warrior said to hold unlimited potential.
- Ultraman Zero: The Revenge of Belial (2010): A group of Darklopses attack the Land of Light. After they are destroyed, it is discovered that they are transmitting energy to a location in another universe. Zero volunteers to investigate and discovers Belial's Galactic Empire.
- Ultraman Saga (2012): Following a plea for help, Zero finds himself in yet another universe where almost all humans on Earth have been abducted. He encounters a young pilot named Taiga, who came from the same universe Ultraman Dyna & his predecessor once called home.
Direct-to-video side stories, set between the films, have been produced.
- Ultraman Retsuden (2011-2016): A television series in which Zero navigates the viewer through the history of the Ultra Series. Most episodes are simply previous Ultra Series episodes or portions of Ultra films with the only difference being a new opening theme and commentary by Zero at the beginning and end of the episode. Some episodes of Retsuden have the aforementioned added Ultra Zero Fight segments, detailing Ultraman Zero's further adventures.
- Ultraman Ginga S The Movie: Showdown! The 10 Ultra Warriors! (2015): Zero pursues Etelgar after Ultraman Cosmos was defeated by the aforementioned perpetrator. Unfortunately, Etelgar escaped and promised that Zero will be his last target. After meeting Ginga and Victory, the Ultra trains them so they will be able to use the Ultra Fusion Brace given by Ultraman King. In the Final Battle against Etelgar, he assists both Ginga and Victory (as Ginga Victory), along with Cosmos and the rest of the Heisei Ultras. In the battle, he's forced to fight an Eteldummy of his Arch-Enemy Ultraman Belial.
- Ultraman X (2015):
- Appearing in episode 5, he was chasing an Alien Nackle after the alien was reported for being a thief and an arms dealer. He later teams up with the titular Ultra of the series against Nackle and Black King.
- In Ultraman X The Movie: Here Comes! Our Ultraman! (2016), Zero battles a Tsurugi Demaaga in Shanghai, China and destroys the kaiju with his Wide Zero Shot after being empowered by Ultraman X's Beta Spark Armor Cyber Wings.
- Ultraman Orb (2016):
- Despite not appearing in the series, Zero was the one who sealed Maga-Pandon in ancient times. His Ultra Fusion Card was collected by Gai Kurenai/Ultraman Orb after he defeated Maga-Pandon and used along with Ultraman Jack's in present times to assume Ultraman Orb Hurricane Slash form. In the Final Battle against Magata no Orochi, Zero manifests in the real world to help Orb deliver a massive fatal blow against the final Demon King Beast by firing his Wide Zero Shot.
- Ultraman Orb The Movie: Lend Me the Power of Bonds! (2017): After learning about Murunau's intention to turn everything on Earth into her personal collection, Zero sets out to find Gai Kurenai/Orb to inform him about the situation and at the same time help Gai/Orb battle a revived Galactron.
- Ultraman Zero: The Chronicle (2017): Another biography series and the first of several such Chronicle compilations. It serves as the 50th anniversary celebration of Ultraseven. As in Ultraman Retsuden, Zero navigates the viewers about his involvement in movies and some miniseries.
- Ultra Fight Orb (2017; aired as part of Zero: The Chronicle): During his investigation in Planet Yomi, Zero encounters a revived Juda Spectre and Mecha Gomora before Orb saves him and defeating both villains. Moments later, the two are greeted by the mastermind Reibatos, as the sorcerer Reionics revives six monsters before heading to the Monster Graveyard. After destroying Vict Lugiel and Hyper Zetton, Zero urges Orb to chase Reibatos before Jack, Seven and Zoffy come to his aid. After Orb failed to intercept Reibatos, Zero and Seven send him into the Shining Field to train him, which allows Orb to utilize his and his father's power as Ultraman Orb Emerium Slugger.
- Ultraman Geed (2018): Zero returns in this series, this time as the Deuteragonist for the titular Ultra. He comes to Earth with Geed, but due to a previous battle, his power weakened, as his Ultimate Bracelet become unusable. He's soon bonded with a human named Reito Igaguri, a salaryman who risked his life to protect a child from a traffic accident, therefore saving his life. While Reito prefers watching the battle from afar, Zero's impatient and Spirited Competitor nature eventually forces his new host to join Geed as well.
- Ultra Galaxy Fight: New Generation Heroes (2019): A Crisis Crossover of several recent Ultraman series — but Zero is merely a Badass in Distress alongside Ultrawoman Grigio and the other Ultras are trying to save them. The villain also creates Evil Knockoffs of a handful of the Ultramen, including Zero.
- Ultraman Taiga (2019): Zero makes an appearance late in the series to help out Taiga (his second cousin) and give him an 11th-Hour Superpower that let's Taiga use Zero's special moves.
- Ultraman Chronicle Zero & Geed (2020): Another Chronicle compilation series; this one showing material from Zero's adventures and from Ultraman Geed.
- Ultraman Z (2020): By this point, Zero's gained Z as a Hero-Worshipper. But when Zero gets sucked into a black hole, Z has handle things on Earth alone. Zero does eventually get out at the end of the first arc, and after catching up with Z he decides he had better go back home and report in; entrusting the Earth to Z's capable hands.
Ultraman Zero provides examples of the following tropes: