He is a light green or brown fish with glasses and facial hair. He wears a cream-colored hat with a cream-colored shirt and black boots as well.
Role in game
When SpongeBob finds him in the game, the biologist tells him random facts about jellyfish and asks SpongeBob to get him a solar radar that helps him figure out more about jellyfish. To get the solar radar, the player has to get a pearl from a clam and swap it for the solar radar with Mack Mackerel. Then trade the solar radar for a battery with the biologist.
He appears as an explorer in the temple of the focusing orb. He tells SpongeBob all about the dangers that await SpongeBob. He tells him about the Corridors of Confusion, the Pool of Perception and the Doors of Deception.
He reveals that jellyfish are aliens looking for a secret portal located in Jellyfish Fields.
SpongeBob suspects that he made up the names of the obstacles in the temple.