The concept of Legendary Pokémon was introduced in *Pokémon Gold and Silver*, and the *Red Rescue Team* games predate that. The "legendary" aspect is often used in *Pokémon* to refer to powerful and rare creatures, but that's not the case in *Red Rescue Team*.
However, if you're referring to the remake *Red Rescue Team DX* for the Nintendo Switch, there are a few Pokémon that could be considered "legendary" based on their rarity and power in the game:
* Mewtwo: Mewtwo is a powerful Psychic-type Pokémon that is unlocked after completing the main story.
* Jirachi: Jirachi is a Steel/Psychic-type Pokémon that is unlocked after completing the main story.
* Lugia: Lugia is a Psychic/Flying-type Pokémon that can be found in the post-game.
While these Pokémon are not strictly considered "legendary" in the traditional Pokémon sense, they are extremely rare and powerful, making them valuable additions to any team.