"You will name the monster you transform into. ...Gorefang...... World Ender?.... Hurry up, I don't have all day long. Snake Darkness. It's great, Snake Darkness, even if its read backwards."

―Ultraman Tregear, Tregear's Story/Blue Shadow.

Snake Darkness (スネークダークネス Sunēku Dākunesu) is a Kaiju that appeared in Ultraman R/B The Movie: Select! The Crystal of Bond.

Subtitle: Evil Wish Beast (邪願獣 Ja Gan-jū)


Ultraman R/B The Movie: Select! The Crystal of Bond


Yukio Toi's illustration of Snake Darkness

Ultraman Tregear contacted Yukio Toi, a friend of Katsumi Minato, who gave up on his dream of becoming a game developer. Having eavesdropped their conversation earlier, Tregear found his prime candidate to cause terror and destruction. Tregear made his presence known to Yukio, who had concept art of Snake Darkness on another monitor, and him tempted by saying he will realize his dreams. Despite being confused and skeptical, Tregear nonetheless corrupted Yukio using his evil energy and transported him to Hoster 21 Star System. Soon after, Ultraman Rosso had appeared on the same planet to save a group of Pigmon from Mecha Gomora. After his battle, Yukio confronted Katsumi and transformed into Snake Darkness, saying that it is a kaiju's mission to defeat Ultraman. Snake Darkness easily defeated Ultraman Rosso and left through another one of Tregear's portals.


Snake Darkness making his appearance on Earth

Arriving in Ayaka City, Snake Darkness, and Yukio within, sought to destroy the world he hated so much. He was met with resistance when Ultraman Blu, Ultraman Geed and Grigio Regina, but defeated the three of them. Two hours later, Katsumi manages to get back to Earth and Ultrmaan Rosso reappeared, but they were beat down once more when Tregear showed up. Refusing to give up, the Minato Siblings and Riku transformed once more. They were once again on the verge of defeat until Grigio Regina evolved into Ultrawoman Grigio, and restored the energies of Rosso, Blu and Geed. Snake Darkness and Tregear still had the upper hand and even had Geed transform into Ultimate Final to match them. The Minato Siblings also joined their hands and unleashed the Makoto Crystal's power, fusing into Ultraman Groob.


Snake Darkness and Tregear vs Groob and Geed Ultimate Final

Snake Darkness and Tregear alternated between fighting Geed and Groob, who are now finally able to match them. Eventually, Snake Darkness is attacked by Groob using the Groob Kourin Shot, and was finished off by the Groobing Ray. Despite Snake Darkness being destroyed in an explosion, Yukio was unharmed and floated back down in an orb of light, cleared of Tregear's evil influence as he goes back to his mother. Ultraman R/B The Movie: Select! The Crystal of Bond


  • According to the movie's Blu-ray cover, Snake Darkness' suit was modified from Zaigorg.
  • Considering Snake Darkness' art is made by Yukio, it could be possible that it's actually Snake Darkness's real life concept art repurposed for the scene.
  • Snake Darkness' name in Japanese is a palindrome. "スネークダークネス", written without the extensions (スネクダクネス), provides the same result written backwards.


  • Height: 68 m
  • Weight: 85,000 t
  • Origin: Corrupted from Yukio Toi on Planet Hoster 21
  • Maximum Flight Speed: Mach 3.8
  • Maximum Running Speed: Mach 0.6
  • Underwater Traveling Speed: Mach 0.7
  • Underground Traveling Speed: Mach 0.5
  • Maximum Jumping Power: 70 m
  • Brute Strength: 132,000 t
  • Grip Strength: 100,000 t
Powers and Weapons
  • Tragedy Shout (トラジェディシャウト Trajedi Shauto): Snake Darkness can fire a heat ray from its mouth. It was shown to be capable of overpowering a barrier Ultraman Blu put up in his Ground form and reverting Grigio Regina back to Asahi Minato with a single blow.
    • Tragedy Shout Hell (トラジェディシャウト・ヘル Trajedi Shauto Heru): After receiving a power up from Tregear, Snake Darkness can fire more powerful heat ray. His eyes will glow when doing so.
  • Shadow Scissors (シャドウシザーズ Shadou Shizāzu): Snake Darkness has a massive claw as its right arm.
    • Demon Blood Judge (デモンブラッドジャッジ Demon Buraddo Jajji): A smashing attack with an impact power of 700,000 t.
    • Guillotine Judge (ギロチンジャッジ Girochin Jajji): Snake Darkness' mace arm has two hooks at the tip that closely resemble snake fangs, which can be used to ensnare opponents.
  • Great Execution (グレートエクスキューション Gurēto Ekusukyūshon): Snake Darkness can fire fireballs from the holes in its shoulders.
  • Flight: Snake Darkness can fly using the flaps on its back. Snake Darkness was shown to be capable of outspeeding the shots of Grigio Regina's rapid fire cannon during flight.
  • Darkness Eater (ダークネスイーター Dākunesu Ītā): Its tail ends in a pincer, which it can use to snap at enemies.
  • Durability: Snake Darkness was shown to be capable of withstanding attacks such as Rosso Ground's Ground Explosion, seemingly unaffected by them.


Ultraman R/B The Movie: Select! The Crystal of Bond


Ultraman R/B Kaiju & Seijin
Ultraman R/B Grigio Bone | Cereza | Black King | Gargorgon | Red King | Gue-Basser | Mecha Gomora | Aribunta | Ultraman Orb Dark | Gomess (S) | Horoboros | Bezelb | Gubila | Grigio King | Neronga | Pigmon | Booska | Dada | Alien Zarab | Alien Mefilas | Alien Chibu | Alien Bado | Alien Pitt | Alien Nackle | King Joe | Grand King Megalos | Gomora | Kamisori Demaaga | Grigio Regina | Reugosite
Ultraman R/B The Movie: Select! The Crystal of Bond Bemstar | Gan Q | Alien Pegassa Pega | Mecha Gomora | Snake Darkness | Pigmon | Grigio Regina
Ultraman R/B Novel: The Blue-Eyed Girl Whose Name is Gray Bakubarba | Nero | Margodon | Grigio | Fearmonger | Alien Egon Ciel | Barrigator No. 1 and 2 | Reugosite
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