This is everything "Professor Squidward" wants to be but fails at so hard on so many levels, especially in the comedy, animation and drawing department. Can't believe I hadn't seen this episode in years. Loved it as a kid and it still holds up amazingly well now.
The visual humor is great, there are lot of clever subtle gags and wordplay humor in each scene and I really liked the dynamic that SpongeBob and Squidward had in this episode. Also the part where SpongeBob's playing around with the marble ("I gotta lick the marble" has always been one of my favorite SpongeBob lines) has some of the funniest drawings ever when it comes to this show IMO as well as the great animation of his eyes. I have no complaints.
9/10