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! :)