These two episodes are Halloween-themed.
"Scaredy Pants" SpongeBob always gets scared on Halloween, so he decides to scare people to get them back. This episode isn't always drop-dead funny, but it is in a lot of parts, like when Patrick calls SpongeBob's brain his "pink hat" or when three trick-or-treaters call SpongeBob a haunted mattress. 10/10
"I Was A Teenage Gary" Squidward watches Gary over the weekend and forgets about him. The way this episode unfolds is hilarious. I especially like the end. Patrick appears for only about 5 seconds, but they're the best 5 seconds of the episode. 10/10
Whole Episode: 10/10
"Scaredy Pants" SpongeBob always gets scared on Halloween, so he decides to scare people to get them back. This episode isn't always drop-dead funny, but it is in a lot of parts, like when Patrick calls SpongeBob's brain his "pink hat" or when three trick-or-treaters call SpongeBob a haunted mattress. 10/10
"I Was A Teenage Gary" Squidward watches Gary over the weekend and forgets about him. The way this episode unfolds is hilarious. I especially like the end. Patrick appears for only about 5 seconds, but they're the best 5 seconds of the episode. 10/10
Whole Episode: 10/10