In the episode where the kids see a cops and robbers TV show, and then try to stop Angelica later in the park from stealing Dil, the cookies, and the cake, there are two slip-ups that I noticed.

1.) Tommy ties Spike to the Reptar wagon using a pull-rope on it. Spike later rips the rope sending the babies flying into some mud. Notice the rope, barely anything is left after spike ripped it. Later on, when Tommy tells Chucky to pull the wagon, the entire rope is back on. Also, the rope should have contracted back into the wagon anyway after Spike ripped it.

2.) Angelica steals the top part of the cake from the old man's brithday party. She drives off in her car, and takes a few bites of the cake. When Angelica's mom sees her with the cake, none of the cake is missing.