1. In the conch shell episode, when the conch says "No" for the last time to Squidward, it shows a close-up of the conch in Squidward's tentacle. The tentacle is yellow instead of Squidward's usual color.
2. In an episode where Mr. Krabs has to go to a hospital to get his arms re-attached, Squidward repeatedly goes to the Krusty Krab. In a series of where squidward goes to the Krusty Krab, The flags are happens. To save time, they repeatedly use this scene, so the flags are always missing during that scene.
1. In Evil Spatula,in the begining,Mr.Krabs has nothing on his face but in the next scene,he has a hospital mask on,but in the next scene with Mr.Krabs,he does not have it on!
2.In License To Milkshake,when Spongebob is giving the milkshake to the blue guy,he does not have his eyebrows and looks old,but at the end the blue guy has his eyebrows back!It was also happening in Patrick Man!And in one episode [I cannot remember the title]the blue guy doesn't have clothes! :)
In the episode "Hall Monitor", at a certain frame, when the policemen stop, both of the policemen's eyelids are GREEN. But when they are moving, they have seperate eyelid colors.
In the episode jellyfish hunter spongebob shares his jelly with the whole Krusty Krab customers. It empties like three times but.... when he goes up to mr.krabs its full again!!!!!
In Enchanted Tiki Dreams when Spongebob gives Squidward a shirt to replace his PJs and when Patrick gives him sunglasses, where does his night cap go? They didn't take THAT off!
In Spongebob vs. the Big One Spongebos shoes melted off and Mr Krabs said that it was in Section 8 to wear shoes, but neither Mr. Krabs nor Squidward wears shoes!
In the MM AND BB Movie Patrick says he had the lens on the whole time, but a few seconds before the lens are off! Take that Steven Hillenburg (The old spongebob director and animater)!
In "Patrick-Man", when spongebob was giving a krabby patty to the blue guy, he had no shirt, then a second or two later he was wearing a shirt! i dont know if anyone has that answer...
In the episode where Plankton starts selling nicknacks and Mr. krabs and him become friends, when Plankton gets the formula, its nighttime, but when he's screaming at the end, its daytime.