Pokemon Season 2 - Episode 83 – Pokéball Peril

Ash and his friends are on Valencia Island searching for Professor Ivy, so they can receive a mysterious Pokéball called the GS Ball. They find Professor Ivy's Pokémon Laboratory where the professor shows them the GS Ball. As the ball cannot not be opened or transported Ash and his friends are tasked with returning the GS ball to Professor Oak for examination. Brock decides to stay on the island with Professor Ivy so that he can learn about Pokémon. Ash and Misty leave without Brock and board a dirigible (airship) but encounter Team Rocket. In the end, Jigglypuff suddenly appears and sings. Team Rocket and Jigglypuff exit the blimp while the blimp crash lands on Tangelo Island.