Neosaurus Render
Home world: Planet Earth
First Appearance: Ultraman Dyna episode 16 "Battle! Monster Island"
Latest Appearance: Ultraman Retsuden episode 49 "Dyna, Battle! Monster Island"
Height: 73 m
Weight: 75,000 t
Category: Kaiju
Affiliation: Professor Otomo
Neosaurus Roar

Neosaurus (ネオザルス Neozarusu) is a monster that appears in the series, Ultraman Dyna. He appeared in episode 16.

Subtitle: Hyper Clone Monster (ハイパークローン怪獣 Haipā Kurōn kaijū)


  • Height: 73 m
  • Weight: 75,000 t
  • Origin: Zarina Zone


Ultraman Dyna

Neosaurus was originally an underground monster who was found sleeping by Professor Otomo, a former TPC scientist who had banned due to his studies for creating his own monster. The scientist then took him to his lab and injected several cells of different monsters and a controlling device into him. The scientist then created clones of two other monsters: Silvergon and Sildron, as test subjects. Due to the scientist's discovery that Hanejiro had the intelligence of a second grader, the scientist kidnapped Hanejiro and took him to the secret island where he kept his hyper clone. As soon as Super GUTS found out about his crimes, Asuka, Kouda, and Nakajima were dispatched to find the island. Due to the Island's magnetic field, the crash landed there and encountered a battle between Clone Sildron and Clone Silvergon. After Silvergon killed Sildron, he attacked Super GUTS. Then, the Scientist's assistant was caught by Asuka, who brought them to the main lab. As the Scientist revealed what he has been doing, Kouda and Nakajima began to try and arrest him, but a quick electric web shielded the Scientist. Asuka overheard the conversation when Kouda left his radio on and rushed to their rescue Silvergon then appeared and Began to attack the lab as well, attracted by Asuka's appearance. As the last resort, Professor Otomo released Neosaurus, who killed Silvergon by throwing him onto the lab, then killing him with his Helix beam. Unfortunately, Neosarus never got Hanejiro's intelligence, and since the lab was destroyed, Neosaurus malfunctioned, and killed the scientist by stepping on him. Just before he could kill Asuka, Dyna appeared. Unfortunately, Neosaurus's spikes prevented Dyna from attacking, and he himself began to beat Dyna with his tail. After Dyna fell, Neosaurus then stepped on the giant. It was then when Dyna transformed into Strong Type. A short mash-up later, Neosaurus fired his Helix Beam, and Dyna dodged behing his tail. Raising his tail up, Dyna succeeded in blowing off the Kaiju's tail, and a beam clash ensued. Dyna's Garnate Bomber won, and Neosaurus fell over, and exploded.

Neosaurus later appeared as a flashback in episode 47.


  • Suit actor: Toshio Miyake
  • Neosaurus's suit was created from a heavily modifyed Dexador suit.
  • Neosaurus's roar is a modifyed Rodan roar.
  • His name in Greek means "New Lizard".
  • Neosaurus is in tribute to Jirass.
  • In the 1966 Batman TV series, in one episode the villain (Egghead) attemps to hatch a dinosaur egg that belonged to a creature called Neosaurus.
  • This episode was later featured in episode 49 of Ultraman Retsuden, "Fierce Battle! Dyna in the Monster Island!!".

Powers and Weapons

  • Helix Beam: From the two objects on his chest, Neosaurus can fire a blue spiral-shaped beam of energy. It's very powerful and it has a homing effect. This attack is also known as "Homing Beam".
  • Spikes: The spikes on Neosaurus's shoulders are sharp enough to harm Ultras.
  • Tail: Neosaurus's tail can constrict opponents.

Toy Release Information

Neosaurus toys

The three Neosaurus toys (leftmost: 1998 first release, center: 2000 ver.)

Neosaurus was made two times as a toy by Bandai, once for the 1998 and once for the 2000 lines. However, the 1998 version was technically released twice. The original release had a red color on the chest area for the Helix Beam, while the second release had a blue color. The paint of the figure later became clearer in the 2000 version. The figure sports articulation in the arms and legs, with a glue-sealed tail. The toy is, however, too short to be in scale with other figures. Neosaurus is labelled number 115 in the 1998 version and 48 in the 2000 version.


Ultraman Dyna Kaiju & Seijin
Ultraman Dyna Sphire | Darambia | Giralen | Neo Darambia | Cyclometra | Grossyna | Daigerun | Sildron | Forgas | Alien Dais | Gyabish | Bao-on | Giaguard | Zenekindarl people | Dexador | Alien Meranie | Monsarger | Mukkito | Himala | Alien Mijir | Garaon | Alien Nuaza | Alien spirits | Alien Krea | Gyanzar | Clone Sildron | Clone Silvergon | Neosaurus | Alien Shilback | Zombayu | Bishmel | Kokakucho | Alien Laseta | Sodom | Mozui | Diplas | Maricula | Spume | Reigubas | Digon | Left | Right | Demagorg | Grossyna II | Male Gigantes | Female Gigantes | Gaigareid | Kogaraon | Garaon II | Gregorl-Man | Imitation Ultraman Dyna | Monsarger II | Lovemos | Satan Lovemos | Alien Naltis | Menorfa | Bazob | Geomos | Neo Geomos | Yumenokatamari | Bundar | Zomborg | Zomborg Soldiers | Clone Daigerun | Alien Jagira | Jagira Tree | God Jagira | Diaorius | Alien Reguran Captain Zoyaka | Mountain Gulliver No. 5 | Golza II | Graikis | Torongar | Churasa | Moravia | Mejiwogu | Phantom Monster Army | Alien Fabiras | Devil Fabiras | Alien Chadabin | Mogedon | Neo Darambia II | Terranoid | Zelganoid | Neo Gaigareid | Gransphire
Ultraman Tiga & Ultraman Dyna: Warriors of the Star of Light Geranda | Alien Monera | Deathfacer | Queen Monera
Ultraman Dyna: The Return of Hanejiro Alien Mijir | Pudgy Garaon | Booska | Kamosuke | Casa Madara | Arwon | Alien Dehadoh (Mentioned) | Hanejiro | Alien Fabiras (Hologram) | Wanzetto