Rock-Type Pokémon are a category of creatures in the Pokémon universe known for their strong defensive capabilities. They are typically resistant to many types of attacks, making them valuable in battles. Rock-Type Pokémon often resemble geological formations or minerals, and they can be found in various habitats, especially mountainous areas. These Pokémon are weak against Water, Grass, Fighting, Ground, and Steel types, which means they take more damage from these attacks. Some popular examples of Rock-Type Pokémon include Onix, Geodude, and Tyranitar. Trainers often use them for their high defense and ability to withstand hits.