When Strago and Gungho were in their youth, they fought the beast Hidon. However, they were not able to defeat him. Eventually, they gave up. When Strago and Relm came to visit Thamasa in the World of Ruin, they hear from him that he tried to fight Hidon again at Ebot's Rock, but he did not succeed, and was injured. Gungho ask Strago to avenge him, but he was reluctant at first but decided to do it in the end.
After Strago and the party defeats Hidon, he claims that Gungho will be very happy. Upon hearing the news of Hidon's defeat, a disbelieved Gungho is reassured by Relm that Strago really did it. When asked about his injuries, he replies that they are fine.
That evening, after Strago has dozed off, Gungho meets Relm outside the house. He tells Relm about his concerns for lying to Strago about faking his injuries. She tells him if it was not for their trickery, he would have spent the rest of his life doing nothing but talk. Gungho wonders how he managed to raise a granddaughter as wonderful as her. Relm replies by saying that Gungho is a terrible actor, and she further goes to say that Strago is the only man alive who would fall for a performance like that.
After this event, Gungho will walk around Thamasa near the burnt house and will greet the player whenever they speak to him. However, if talked to enough times he will inform the player that Hidon has once again appeared at Ebot's rock, giving the player a rematch with it and another chance to obtain Strago's ultimate offensive Lore Grand Delta, if they missed it during their first encounter.
Gung-ho is an English-language term taken from Chinese, the term means "enthusiastic" or "overzealous". Gung ho is an anglicised pronunciation of gōng hé (工合), which is also sometimes anglicised as "kung ho." The two Chinese characters gōng and hé are translatable individually as "work" and "together."
- In the SNES and PS version, the story is a little different from the GBA version. Relm deduced Gungho had faked his injuries to give Strago an excuse to go hunting Hidon which in turn would raise his self-esteem. Gungho confirmed this, panicking, but she agreed to keep it their secret.
- In the Dawn of Souls and 20th Anniversary remakes of the original Final Fantasy, Gungho is one of the automatic names the player can choose for the Black Mage job.