Continuity mistake: Cory is trying to get a date with Cindy when in the episode before they already became boyfriend and girlfriend.
Suggested correction: This series is not meant to be taken in exact chronological order. Most episodes have no dates or time of the year set. Unless we have reference to a date or time period of the year; we have no way of knowing if the continuity is truly off as this series is meant for the episodes to be taken within a generalized time. Not in any specific chronology except for a few where the time period is specific. Neither this episode or the one before it has reference to a date in time.
Suggested correction: While the other correction is wrong, the real reason this isn't a mistake is because the episodes were aired out of order they were produced, which means it's not a mistake within the context of the show. "Bend It Like Baxter" (production code 315) was filmed before the previous episode, "Double Vision" (production code 318).
Continuity mistake: When Chelsea drinks all the punch, you can see that her face is soaked. The next shot you see of her, her face and hair are dry.
Continuity mistake: When Chelsea is going around the school and talking to the different people she's wearing yellow pants, yet in the cafeteria she has plaid red pants on instead of the yellow ones.
Continuity mistake: When Cory is talking to his dad about not trick or treating with him, look at his barbell. The number "one" written on it keeps appearing and disappearing between shots.
Continuity mistake: When the clown crashes through the window, Chelsea starts taking pictures after the clown is in the room. However, in the newspaper article, you can quite see the picture of the clown just crashing through the window.
My Big Fat Pizza Party - S2-E21
Continuity mistake: When Chealsea and Raven are making the giant pizza, the pepperoni slices Chealsea throws on the pizza are normal sized, but when they come into the dining area they are giant.