The Episode begins with Patrick sandboarding, as he crashes into a hill, breaking into pieces. It turns out Patrick was playing a video game, but the same thing that happened to the character soon happens to him. Sandy warns SpongeBob not to play games and board, so SpongeBob begins to board anyways. While sandboarding, SpongeBob does a stunt called "The Grouchy Squidward." While doing this stunt, he almost crashes into a tree. Then, he crashes into the ground, because Sandy says it hurts a lot, and SpongeBob is taken to the hospital.
Purple Doctorfish says that it took 20 hours to glue it back together, and that if he has another similar injury, he may end up with an "iron butt," a huge machine on wheels connected to where the butt used to be. SpongeBob goes on "around-the-clock butt patrol," and after seeing many potentially dangerous things outside decides to stay home forever with his "potato chip," the "penny" that has never been used, and a "tissue napkin" that has been truly used. Sandy and Patrick try to persuade to get SpongeBob to come outside, which are to no avail until they attempt to stage a fake gorilla attack.
SpongeBob is unconvinced by this, until a duplicated clone of Patrick Star appears which transforms into an actual real live-action gorilla. He then stuffs them into the bag, and attacks them. SpongeBob leaves the safety of his home to save his friends, but is easily defeated and is split into half by a gorilla. The episode ends with a massive non-sequitur: When SpongeBob asks how a gorilla can exist underwater, the gorilla says "George, they're on to us!" and runs away on his zebra. The characters watch them run off, and a family that watched it all in confusion turns off the TV.
I can turn into a skyscraper!
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Near the middle of the episode, SpongeBob talks before his mouth moves.
SpongeBob's X-ray shows he was taped up with a lot of tape, but the doctor said he put it together with glue.
Just before the old person says "I say we take a bath," SpongeBob's socks are missing.
When the old fish says, "I say we take a bath," the outside of SpongeBob's pineapple is smooth instead of its normal texture.
After SpongeBob Sang "Indoors," Patrick can be seen crying. However, he disappears as Sandy points to SpongeBob.
When SpongeBob uses the really long spatula, The Krusty Krab is to the east of his house, But it is usually to the west and the sign is missing.
SpongeBob's butt should not have shattered upon impact as he is a sponge.
When Patrick and Sandy enter SpongeBob's house, Patrick's right eyebrow flickers red for a fraction of a second.
When SpongeBob says "No problem," Penny, Used Napkin and Chip are missing.
Squidward is seen calmly watering his plants during the gorilla attack. He would have ran into his house as soon as he saw the gorilla, way before the viewers would even have a chance to see him. Or at least be watching in shock. The writers must have forgotten about the gorilla when thinking of the joke, and decided it was so funny they had to put it in anyway.
Before the dust collecting scene his window is circle, but after it is oval-shaped.
The Gorilla is slightly see-through.
When Patrick is about to hit the sand mountain, his sled disappears.
When Patrick closes SpongeBob's door, his arm goes right through it.