FusionDex

In addition of changing colours to blend in with its surroundings, Vaporeon can also render itself completely invisible underwater. Even the zigzag pattern is concealed, where the fusion differs between other Kecleon fusions and the Pokémon itself.

A Pokémon that has the ability to alter its body colors to match its surroundings. Vaporeon underwent a spontaneous mutation and grew fins and gills that allow them to live underwater.