Here's why:
* Chimecho is not a required Pokémon for any Pokédex. This means it's not a Pokémon that is required to unlock any features, progress the story, or achieve a specific goal in the game.
* Chimecho is typically found in the later stages of a game. While it may be a good idea to catch it for completionist purposes, it's not necessary to progress in the game.
However, it is important to remember:
* Each game's Pokédex has its own specific requirements. While Chimecho may not be required in one game, it could be in another.
* Some games may have challenges or goals that require you to catch a specific number of Pokémon. These may not be directly related to the Pokédex completion but could require you to catch Chimecho as part of a challenge.
Always refer to the specific game's guide or online resources for the most accurate information on Pokémon requirements and completion.