Motto

Motto is a fan made character on Spongebob Squarepants

Appearance
He appears to resemble Plankton except with a realistic, humanoid looking face.

Personality
It's currently unknown what his behavior is, it might be similar to Plankton's.

Show appearance
He does not appear in the show as of right now, but he appears in the game " Squidward's Sanity".

Trivia
He is Plankton from the Creepypasta " Rock Motto" created by ThatGuyPoops.