While it is not known to evolve into or from any other Pokémon, it can Mega Evolve into Mega Geckone using the Geckonite becoming a Psychic-type and Dark-type Pokémon.
Geckone is a bipedal reptilian Pokémon with a primarily red body. It has blue stripes across its snout and stomach, as well as blue shoulders and beady yellow-orange eyes.
Mega Geckone grow spikes on their head and have longer tails complete with two red stripes. They retain their bipedal reptilian form while the red coloring of their bodies become black in color. It now has purple stripes across its snout, stomach and arms to replace the blue stripes. It has yellow-orange eyes with white pupils and a yellow-orange emblem on it's stomach.
Geckone live in forests and are usually found on the side of trees.
Geckone are able to tap into the minds of people and Pokémon as a defense mechanism, overlaying their visions with illusions.
It and Lophug appear to both be counterparts as both are located in the same area and are both Stand Alone Pokémon that are rare to find. They also have a Mega Evolution to further prove they are Counterparts.
Geckone's eyes resembles a Poke ball.
Geckone is based off a Gecko. Protean ability refers to how Gecko's and chameleons change their colour and appearance to act on the other object, it's closely Similar to the Color Change ability.