Forbidden Words
Ultraman, Episode 33
Alien Mefilas v Ultraman
Air date 1967/2/26
Screenplay by Tetsuo Kinjo
Directed by Toshitsugu Suzuki
Special skill director Koichi Takano
Episode Guide
The Endless Counterattack
Present from the Sky
Watch on Hulu

The Forbidden Words (禁じられた言葉 Kinji Rareta Kotoba) is the 33rd episode of Ultraman. It marks the first appearance of the iconic seijin, Alien Mefilas.




Mefilas an alien wanted to trade Earth, because his star was dying. He did this action by kidnaping Fuji and Hiroshi. He was hoping to convince them to agree, since Mefilas disliked violence. Unfortunately, they did not agree. Mefilas created a Giant Fuji and turned her into a giant. As a further demonstration of his power, he summons illusions of Alien Baltan, Alien Zarab, and Kemur Man. Eventually, the Science Patrol found the flying saucer and attacked it. Mefilas retaliated, but was forced to retreat. The members rescued Fuji and her brother. They left behind Hayata who was frozen by Mefilas earlier. As Hayata fell down, he became Ultraman and fought the alien. The two were evenly matched. Mefilas stopped the match saying theirs no need to fight each other, when he wanted the hearts of the Earth, but lost to a kid. He told Ultraman that he will someday return, & vanished.



Suit Actors

  • Ultraman (ウルトラマン Urutoraman): Bin Furuya (古谷 敏 Furuya Bin)
  • Alien Mefilas (メフィラス星人 Mefirasu Seijin): Koji Ogi (扇 幸二 Ōgi Kōji)





"What's so funny, Ultraman?

"Mefilas, your guess was completely wrong. No human would sell the Earth. Even a child like Satoru, wants to do good things for the Earth, and would never throw it away!"

"Shut up! What are you Ultraman? Are you an alien, or a human?"

"I am both. I was born to fight those who break universal laws, like you."

"Don't kid yourself. I will make this beautiful planet my own."

"Mefilas, I won't let you."

Alien Mefilas I and Ultraman in Mefilas I's Space ship

"Alien Mefilas, go home to your own planet at once."

"You spy."

"Let's go!"

Ultraman's and Alien Mefilas I's final words before their battle

"Let's Stop. Ultraman, there's no  use in two aliens fighting each other. I only wanted the heart of the Earth. But, I have lost. I even lost to a child. How ever this does not mean I have given up. There must be someone that will give me the Earth. They will come to me!"

Alien Mefilas I ending his battle with Ultraman

DVD Release

  • Ultraman Volume 9 features episodes 33-36.


  • This episode was later featured in Ultraman Retsuden Episode 84: The Forbidden Word! Alien Mephilas's Challenge!!

Ultraman Episodes
Birth of Ultraman | Ultra Operation No.1 | Shoot the Invaders! | Science Patrol, Move Out | Five Seconds Before the Explosion | Secret of the Miloganda | The Coast Guard Command | The Blue Stone of Baraji |The Lawless Monster Zone | Lightning Operation | The Mysterious Dinosaur Base | The Rascal from Outer Space | Cry of the Mummy | Oil S.O.S. | The Pearl Defense Directive | Terrifying Cosmic Rays | Science Patrol Into Space | Passport to Infinity | Brother from Another Planet | Demons Rise Again | Terror on Route 87 | Breach the Wall of Smoke | Overthrow the Surface | My Home Is Earth | The Undersea Science Center | Mystery Comet Typhoon | The Prince of Monsters: Part 1 | The Prince of Monsters: Part 2 | Human Specimens 5 & 6 | The Challenge Into Subterra | Phantom of the Snow Mountains | Who Goes There? | The Endless Counterattack | The Forbidden Words | Present from the Sky | The Monster Graveyard | Don't Shoot, Arashi! | The Little Hero | The Spaceship Rescue Command | Farewell, Ultraman