"Then, I shall grant a gift... Hellberus."
- ―Kirisaki, Ultraman Taiga episode 1
Subtitle: Ultimate Disaster Monster (最凶獣 Sai Kyō-Jū)
Hellberus was a Kaiju that made its reputation for being the strongest in space. It was summoned by Kirisaki to Earth in order to lure out Ultraman Taiga. Upon being summoned, it rained down spike projectiles on Zegun and a Young Mother Zandrias, who were fighting in the city. Hellberus then used its spiked tail to impale and destroy Zegun before descending. After which it attacked Zandrias using its tail, Hell Slash and fireballs, setting ablaze the building that Hiroyuki Kudo and Baby Zandrias were in. Desperate to save the life of Baby Zandrias, Hiroyuki's wishes were heard by Ultraman Taiga, who allowed him to transform and fight against Hellberus. It was a fairly easy battle for Taiga, who managed to beat Hellberus down while blocking most of its attacks. Taiga then fired the Strium Blaster at it, but it survived. Then, using the Supreme Blaster via the Orb-let, Taiga finally finished off Hellberus and gained its ring in the process.
Hellberus returned when Kirisaki summoned it from its Kaiju Ring to stop Ultraman Fuma and Ultraman Titas from reaching Taiga, who had been corrupted by Ultraman Tregear. However, Titas, Fuma and Hiroyuki had managed to rescue Taiga from the darkness, granting him his newest form - Tri-Strium. Using the Taiga Tri Blade, Taiga finished off Hellberus using the Titas Burning Hammer.
- Designer: Daisuke Inomoto
- Suit Actor: Kenji Kajikawa
- Hellberus' design motif is based off of Sengoku-era Warlords, specifically Sanada Yukimura when donning his red armor, due to its color scheme.
- Demaaga served as the basis for Hellberus' design.
- Originally, Hellberus was supposed to have a spear for his hand and used it to kill Zegun instead of his tail. However, Ryuichi Ichino wanted a more normal monster design and so had the spear moved to Hellberus's tail.
Ultraman Taiga The Movie: New Generation Climax
Hellberus is set to reappear in the movie.
- Height: 60 m
- Weight: 50,000 t
- Origin: Space
- Powers and Weapons
- Hell Edge (ヘルエッジ Heru Ejji Sandā): The blades on Hellberus' arms.
- Hell Slash (ヘルスラッシュ Heru Surasshu): Hellberus can shoot red energy arcs from the blades on its arms.
- Hell Spike (ヘルスパイク Heru Supaiku): The sharp spikes on its back.
- Hell Edge Thunder (ヘルエッジサンダー Heru Ejji Sandā): Hellburus can shoot it sown spikes as projectiles that rain down on an area and explode.
- Fireball: Hellberus can launch a fireball from its mouth.
- Hell Horn Thunder (ヘルホーンサンダー Heru Hōn Sandā): Hellberus can launch twin bolts of crimson lightning from the horns atop its head.
- Blade Tail (ブレードテイル Burēdo Teiru): At the tip of Hellberus' tail is a sharp spiked edge, which can easily impale a monster such as Zegun. Hellberus can also use its tail to batter enemies.
- Durability: Hellberus is durable enough to survive an Ultra Beam such as the Strium Blaster, but was finished off after a follow-up Supreme Blaster immediately after.