While on his way to Indigo Plateau, Ash was stopped by Otoshi, who challenged him to a battle, but with a twist: whoever lost had to give up their Badges to the winner. Ash, confident he would win, accepted the challenge. Otoshi's Marowak successfully defeated Ash's Bulbasaur, but it lost to Pikachu.
Otoshi then admitted that he had no Badges to give to Ash. Ash thought that Otoshi was a cheater, but the defeated Trainer told the story of how his Badges were stolen by somebody who he didn't know. He claimed a talking Meowth did it. Ash and his friends realized that Jessie, James and Meowth of Team Rocket must have been the ones who robbed Otoshi. Feeling sorry for him, Ash and the others decided to help Otoshi retrieve his Badges from Team Rocket.
After finding James and Meowth—who claimed that Jessie had taken the Badges from them—Marowak left Otoshi, saying that if Otoshi were a more responsible Trainer, he would never have lost the Badges and would be able to compete in the Pokémon League. Otoshi was saddened, but continued to look for his Badges.
After Ash, Misty, Brock, and Otoshi found Jessie and confronted Team Rocket, Otoshi challenged Jessie for the Badges. She told Otoshi that if he defeated her, she would give his Badges back. Using his Doduo, he tried to defeat Jessie's Arbok, but the two heads ended up fighting with each other. Just as Jessie was about to capture the Doduo, Marowak returned to Otoshi and helped him defeat Team Rocket. Marowak, who was originally angry, had seen other Trainers training alongside their Pokémon and remembered the camaraderie formed between him and Otoshi.
Otoshi, now reunited with both Marowak and his Badges, continued to Indigo Plateau to compete in the Pokémon League.
This article is missing information on this character's English voice actor and Japanese voice actor.
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This listing is of Otoshi's known Pokémon:
| Otoshi and his Marowak are great friends and defeated several Gym Leaders together. It first appeared together with Otoshi and battled Ash for his Badges against his Bulbasaur, which Ash accepted after Otoshi taunted him for wanting to refuse. Marowak defeated Bulbasaur easily with a combination of Focus Energy and Bone Club and Ash sent out Pikachu to battle instead. Marowak went in for an attack but Pikachu dodged it and used Thunder Shock, defeating Marowak.
Otoshi then admitted that he did not have any Badges, as Team Rocket had stolen them. Ash and his friends, despite running the risk of being late for the Pokémon League Tournament, decided to help Otoshi get them back. They looked for them and eventually found James and Meowth but they could not find the Badges. Suddenly, Marowak decided that it did not want to be Otoshi's Pokémon anymore. Otoshi tried to comfort it, but Marowak walked off angrily.
It was later seen when Otoshi's Doduo was in danger of being captured by Jessie. It appeared in the nick of time, knocking Jessie's Poké Ball out of the way and defeating her Arbok. Team Rocket tried to escape in their balloon but Pikachu sent them blasting off and Otoshi got his Badges back. Afterwards, Marowak rejoined Otoshi's team and said goodbye to Ash and his friends.
|Debut||Bad to the Bone|
| Otoshi's Doduo first appeared in a battle between Jessie to get Otoshi's Badges back against her Arbok. Arbok was winning as suddenly the two heads of Doduo started to fight. Jessie decided to try to capture Doduo, but Marowak hit the Poké Ball out the way with its bone. Otoshi then recalled Doduo.
None of Doduo's moves are known.
|Debut||Bad to the Bone|
- In the Latin American Spanish dub, Otoshi was voiced by the same voice actor who voices Inuyasha, a character from the anime with the same name. They both have almost the same outfits and the concept of these characters is very similar.
|This article is part of Project COD, a Bulbapedia project that aims to write comprehensive articles on each one-time character of the Pokémon anime.|