Ditto

Ditto, The Adorable Blob, is a competitor on Total Pokemon Island. She is a member of the Dreadful Diancies.

Total Pokemon Island
Episode 1: The Crazy Campers

Ditto is the sixth Pokemon to arrive at the island after being dropped by the plane. She transforms into Kyogre to travel through the water, scaring everyone on the island, before transforming back into a Ditto to introduce herself.