It was also used as the ending to Camp Pikachu; in the English dub, an instrumental version of the song was used as the ending.
Pikachu rides onto the screen on a line of floating Poké Balls. It quickly leaps off as the lyrics begin and starts to dance. Pikachu dances past a wheel filled with pictures of Pokémon before encountering several groups of Pokémon that correspond to the Pokémon types mentioned in the lyrics of the song. After the song finishes describing the different Pokémon Pikachu returns to dancing in the center of floating Poké Balls. After a brief shot of a giant jigsaw puzzles depicting a Poké Ball the focus goes back to Pikachu. Pikachu is quickly joined by Togepi, a Bellsprout, a Piloswine, a Jigglypuff, a Dodrio, and finally an Unown who begin dancing as well as the credits fade out.
Yellow ones, red ones Green ones, pink ones Flashy, mixed up ones Tightly wound ones, careless ones Eager ones, worried ones Relaxed ones thinking "It'll work out" Why is everyone so super energetic? Vari-variation, Poké-Pokémotion Oh! We made some wonderful friends