Petpets are virtual pets that can be adopted and cared for in the online game Neopets. They come in various species and colors, allowing players to choose their favorites. Each Petpet has its own unique characteristics and can be named by the player. Players can interact with their Petpets by feeding, playing, and grooming them. Petpets can also be equipped with items and taken on adventures, enhancing the gameplay experience. They add an extra layer of fun and companionship to the Neopets universe, making it more engaging for users.