Invasion of The Space Amoeba
Ultraman 80, Episode 23
Air date 09/03/1980
Screenplay by Hiroyasu Yamaura
Directed by Toru Toyama
Special skill director Koichi Takano
Viewer Ratings 9.0%
Episode Guide
When the Planets Make a Line
Star of the Traitorous Android
Watch on Crunchyroll

SOS! Invasion of the Space Amoeba (SOS!! 宇宙アメーバの大侵略 Esuōesu! ! Uchū amēba no dai shinryaku?) is the 23rd episode of Ultraman 80.


Space amoebas have killed everyone aboard the Space 7. Can UGM prevent the Space 7 and its deadly cargo from reaching Earth? Crunchyroll summary


The UNDA Space 7 is returning to earth, when space amoebas attack. They all die horribly and graphically, but not before an SOS is sent to the UGM team. Three men mount an emergency rescue attempt. One of the members is sent to investigate, and discovers the amoebas are using the dead crew members to reproduce.

In order to stop the amoebas from getting to earth, Takeshi member knocks out the other two crew members and boards to pilot the vessel away. Later, the remaining two men return to earth. The captain contacts Takeshi, who is in the yet-uninvaded pilot room. He orders him to escape while he fires a missile from earth.

Takeshi tries to escape but is attacked by an amoeba which was hiding in his helmet, but seemingly kills it. However, his air pipe is destroyed. They destroy the missile. Later, an asteroid passes by, and as the Space Mammy watches, Takeshi crash-lands. He transforms into 80.

The craft explodes, and the amoebas come together into one large mass. 80 and Amehza battle on the strangely round asteroid, which somehow has enough gravity to support them. They battle, and 80 seems to be losing. However, as he sees the Space Mammy approaching, he defeats the monster.

The crew finds Takeshi unconscious and bring him back to base. He revives and reunites with his friends. End.





  • Amehza (First and only appearance)

DVD Release

  • Ultraman 80 Volume 6 Features Episodes 21-24
80 Vol 6

Ultraman 80
Teacher Ultraman | The Teacher's Secret | First-Love Monster | For the Love of the Sky | Streets of Illusion | Boy from the Stars | Operation Silent Tokyo | Revival of a Legend | Airport Emergency | The Visitor from Space | Gas Panic Horror | The Beautiful Transfer Student | Formation Yamato | Teleportation! The Man From Paris | The Laboratory of Doctor Demon | The Mysterious Snow Art from Space | Flight to the Eerie Monster Island Part 1 | Flight to the Eerie Monster Island Part 2 | Directive: Destroy the Planet | The Army of Bloodsucking Balls | Shine for Eternity! Space GMan 85 | When the Planets Make a Line, Something Will Happen | SOS! Invasion of the Space Amoeba | Star of the Traitorous Android | Beautiful Challenger | Shadow Warriors in the Time Tunnel | White Demon of Fear | Lullaby of the Migrating Monster | Wrath of the Emperor | Lost Friend in the Desert | Flying Seed of a Monster | Ship on the Sea of Darkness | The Boy-Made Monster | I Caught a Strange Fish | The 99th Year Dragon Festival | Let's Go! Stag Beetle Wintering Team | Alien Baltan's Fearful Zoo Operation | The Voice of the Father of Ultra | I Am the Monster | The Mountain Sumo Boy | Did You See the Zero Monster Bird | The Kannon Is Strongest | The Female Warrior of Ultra | Duel! 80 vs Seven | The Never-Ending Challenge of the Baltan | The Unforseen Revival of Red King | The Evil Glove. Be Careful What You Throw Out! | The Speed Runner from Death Mountain | 80's Greatest Peril! Transform! Lady Ultraman | Ah! The Giraffes and Elephants Turned to Ice!!