Subtitle: Odd Beast (奇獣 Ki-jū)
Some sort of strange alien creatures, the Dethmon appeared in the Japanese skies one calm day. GUTS was quick to strike back at the invading forces, shooting down the monsters with whatever available weapons they had. By the time the attack was over, all that remained of these strange creatures were a series of photographs taken by the human forces.
- Dethmon is the second known monster defeated by GUTS without Ultraman Tiga's assistance (the first being Gakuma Alpha).
- Dethmon's appearance seems to resemble Alien Bira, right down to the tail.
A smaller Dethmon was seen as one of the test subjects of Alien Chibull Mabuze's experiments to create the ultimate creature.
- Height: 40 m
- Weight: 15,000 t
- Origin: Metropolice sky
- Powers and Weapons
- Flight: Dethmon is capable of anti-gravity flight.
- Resistance: Dethmon shows a very high resistance against GUTS weapons, simply bouncing him off as if they were nothing