Decisive Battle! Ace vs. Hideki Go (決戦!エース対郷秀樹 Kessen! Ēsu tai Gō Hideki) is the 10th episode of Ultraman Ace. It features the return of Jiro Sakata and Rumiko Maruno from Return of Ultraman.


While walking around in the streets, Jiro spots Hideki Go, although his caretaker doesn't believe him. Shortly after Jiro saw Go, Zaigon emerges and attacks, trampling buildings.

TAC is quick to respond, sending jets in. Upon arrival, TAC spots Jiro and his caretaker trapped on the ground with all the fires brewing around. Seiji Hokuto goes on land to rescue the 2 from Zaigon as he advances toward them. As Hokuto is about to shoot Zaigon with a bazooka, Hideki Go appears in front of him. Hokuto tells him to move out of the way but he refuses so Hokuto shoves him aside. Go suddenly fired a Laser Cannon he had at Zaigon, which he calls the "Ultra Laser", causing Zaigon to vanish.

Jiro Sakata was excited to see his brother figure return, before being gently pulled away as Go was injured during the attack and sent to TAC hospital for recovery. The team recalls that Go was a member of the previous attack force MAT and that he died during the battle with Alien Bat and Zetton II.

TAC would then settle into an intense debate of whether to accept Go as a new member, and Seiji is scolded for arguing about how Go's actions prevented him from firing at Zaigon. Afterwards, when Seiji and Yuko visited Go in his room with Jiro and his female companion, Seiji begin to suspect Go when Jiro saw Go handle the chopsticks he had been given to eat the food Jiro gave him in his left hand, when Go is right handed.

Just then Zaigon reappeared and Go lept out of his bed, locking the door and trapping Jiro along with his caretaker inside. Hokuto tried to open the door, but Go shot at him, and that was when he revealed his true identity as Alien Antira. Hokuto quickly freed Jiro, who went after the alien, thinking it was Go Hideki. As Jiro reached the rooftop, he saw the alien in disguise ordering Zaigon to destroy the building as soon as possible. Jiro was angry, and charged at the villian disguised as his idol, but he was taken hostage. Hokuto freed Jiro. Antira leaped around dodging Minami's and Hokuto's gunfire, but when he landed on the roof he was shot by Hokuto's rocket launcher, killing him.

As the building was filling up with smoke, making it hard for Jiro to breath, Minami and Hokuto transformed into Ultraman Ace, putting Jiro on the ground safely before turning to face his opponent, Zaigon. Ace battled with the rhino-like choju himself. Ace then proceeded to taunt Zaigon by using a red flag as a cape, bullfighting with the choju, but the taunting didn't last long after Zaigon used his flames. After shooting the choju in the mouth with the Light Ball, Ultraman Ace decapitated Zaigon with the Ultra Knife. Ultraman Ace then took Zaigon's head and erected it as a tomb for the monster.

Afterwards, Jiro and his caretaker along with Minami and Hokuto swung on the swings. When suddenly Jiro got up from the swing and looked to the skies, seeing a vision of Hideki Go. As he saw the vision, Jiro recited the 5 Ultra Pledges.


Guest Stars

Suit Actors

  • Ultraman Ace (ウルトラマンエース Urutoraman Ēsu): Shoji Takeuchi (武内正治 Takeuchi Shoji)
  • Zaigon (ザイゴン Zaigon): Toru Kawai (河合 徹 Kawai Tōru)




Home Media

  • Ultraman Ace Volume 3 features episodes 9-12.
Ultraman Ace Episodes
Shine! The Five Ultra Brothers | Beyond the Giant Choju | Burn! Choju Hell | 30,000 Year Choju Appears | Giant Ant Choju vs. Ultra Brothers | Pursue the Mystery of the Transformation Choju | Kaiju vs. Choju vs. Alien | Life of the Sun, Life of Ace | 10,000 Choju! Surprise Attack Plan | Decisive Battle! Ace vs. Hideki Go | The Choju is Ten Women? | The Red Flower of Cactus Hell | Execution! The Five Ultra Brothers | The Five Stars that Scattered Throughout the Galaxy | Summer of Horror Series - Curse of the Black Crab | Summer of Horror Series - Ghost Story! Cow God Man | Summer of Horror Series - Ghost Story! The She-Devil of Firefly Field | Lend Me the Pigeon | Mystery of the Kappa's Residence | The Star of Youth, the Star of a Couple | I Saw the Phantom of a Heavenly Woman | Yapool, Demon of Revenge | Reversal! Zoffy Now Arrives | Look! A Giant Transformation in the Middle of the Night | The Pyramid Is a Choju's Nest! | Total Annihilation! The Five Ultra Brothers | Miracle! The Father of Ultra | Farewell Yuko, Sister of the Moon | The Sixth Ultra Brother | The Ultra Star That Even You Can See | From Seven to the Hand of Ace | With a Prayer upon the Ultra Star | Shoot That Hot-Air Balloon | A Choju Dances on a Sea of Rainbow | A Gift from Zoffy | This Choju has 10,000 Phones? | The Star of Friendship Forever | Resurrection! The Father of Ultra | The Life of Seven! The Life of Ace! | Give Back the Panda! | Winter of Horror Series - Ghost Story! Lion Drum | Winter of Horror Series - Mystery! The Resurrection of the Monster Woo | Winter of Horror Series - Ghost Story! The Cry of the Abominable Snowman | Setsubun Ghost Story! The Shining Bean | Big Pinch! Save Ace! | Ride Beyond the Time Machine | Curse of the Salamander | The Revenge of Verokron | The Flying Jellyfish | Mass Chaos in Tokyo! Traffic Signals Gone Haywire | Life-Sucking Sound | Tomorrow's Ace Is You!
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