The Gostero (ザ・ゴステロ Za Gosutero) is a minor antagonist of Choushinsei Flashman, serving as the primary antagonist of the Episode 31. He was an orca-like Beast Warrior creation at the service of the Reconstructive Experiment Empire Mess.
Biography[]
Gostero was created by Dr. Keflen and then he was sent to Earth by Emperor Lah Deus to accompany the Mess generals Leh Wanda and Leh Näfel in their fight with the Flashman in the next plan if conquering the Earth. Gostero arrived to the Earth and attacked Tokyo, starting terrorizing the city. Then Flashman arrived and started fighting Wanda and the villainous orca monster.
Gostero was a Beast Warrior with two mouths; a larger mouth that opened into a smaller mouth. This smaller mouth spits out a gooey substance that was difficult to remove on its own, particularly for the Flashman due to a celestial alignment of the five Flash planets interfering with their powers and preventing their Prism Flash from activating.
With pieces of their bodies stuck with the substance, the team was forced to flee from the Beast Warrior and Wandal until the alignment would end, upon which it would become easier to remove the goo with their Flash powers and transform once again. Eventually, despite being cornered by the Ess generals and the Beast, the time of the alignment had ended and Flashman used their Prism Flash and transformed again. After this, the team fught the villains and successfully defeated them, destroying the monster and forcing Wanda and Nafe to retreat. The Gostero took a bombardment of the Flashman's five prism weapons until the multi-colored heroes used their Rolling Vulcan to destroy the Beast; after being rebuilt and grown by Kuragen, it was destroyed by Flash King Robo.
[]
 Villains
| ||
|
Reconstructive Experiment Empire Mess | ||