Ludicolo

Ludicolo is a bipedal Pokémon that appears to be a mixture of a pineapple and a duck. There is a green, sombrero-like growth on its head that is similar to a lily pad. Growing out of the top of its head is a short brown stem with a yellow spiky upper portion. Ludicolo has black eyes surrounded by a patch of green and an orange bill. Its body is covered with shaggy yellow fur and has several zigzagging brown stripes. The female has thinner stripes than the male.

Ludicolo has large, green hands with two black lines on its palms, and thick green legs with a black circle on the underside of its feet. Ludicolo becomes more powerful when it hears festive music and will appear near laughing children on hikes. As it becomes more energetic and active, it will break into a dance. Being the result of evolution via Evolution stone, Ludicolo is rarely found in the wild, though they can be found near the water's edge.

Brock's Ludicolo
In Once in a Mawile, Brock's Lombre evolved into a Ludicolo. It is currently back at Pewter Gym with Brock's siblings.

Ludicolo debuted in Gotta Dance!. It kept showing up out of nowhere whenever the Poké-Baton was activated.

Ludicolo made its main series debut in Go Go Ludicolo, under the ownership of Poncho. It battled Ash twice, defeating his Corphish with its defensive skills, and was also the target of one of Team Rocket's schemes.

In Like It or Lup It!, a trio of wild Ludicolo became involved in one of Team Rocket's schemes.

In A Faux Oak Finish!, a wild Ludicolo evolved from a Lombre when Professor Oak gave it a Water Stone.

In Good Friends, Great Training!, Tierno was revealed to have caught a Ludicolo to Ash, Serena, and Bonnie. In Valuable Experience for All!, it was used in Tierno's battle against Sawyer, but it was defeated by Aegislash.

In Up to Your Neck!, Ash and Goh requested a Ludicolo for its help in freeing a Marshtomp stuck in the ground. It used Rain Dance to soften the mud and helped pull it free.