Other mistake: At Chez Pierre, when the waiter takes Arnold's menu and says that he is finished with his order, Helga is mistakenly displayed behind her chair instead of in front of it like she should be. (00:13:26)
Other mistake: At Chez Pierre, after Helga talks about Paris, Arnold says, "But I thought you lived on a farm in the Loire Valley." In this shot, Arnold is mistakenly displayed in front of the table instead of behind it like he should be. (00:12:48)
Other mistake: When Arnold picks up Helga's shoe and asks Helga who she is, Arnold and Helga are getting cut off at the bottom of the screen. (00:21:39)
Deliberate mistake: Gerald's little sister loses her stuffed animal, Wallie. The window it's sitting by is obviously a closed window. Somehow, Arnold is able to look out of it, even though there is a pane of glass there.
Other mistake: At the French café where Arnold is dining with Helga, there are several scenes where a dark line is at the bottom of the frame. It is only present during certain camera angles. Perhaps something like a hair got stuck to the animation cels, and they figured nobody would see it.
Continuity mistake: Arnold's glass roof is covered in snow after he can't find the boots, and he is depressed. Immediately, he looks up, and there is no snow. We see through the glass to open sky.
Tour de Pond / Teachers Strike - S2-E18
Other mistake: Tour de Pond: When Rex first approaches Arnold, Gerald, and Grandpa at the Tour de Pond race, as he says, "Are you two going to race that... put it on display?", Arnold's shoes are white instead of black, as they should be. (00:05:25)
Tour de Pond / Teachers Strike - S2-E18
Other mistake: Tour de Pond: When Arnold and Rex's boats get stuck together during the first round, there are two shots of Sid and Phoebe at the stand. They are supposed to be sitting in their chairs, but they are misplaced too far to the left of them in these shots. This is shown again at the start of the final round. (00:07:13 - 00:08:45)
Tour de Pond / Teachers Strike - S2-E18
Other mistake: Tour de Pond: After Arnold's boat starts sailing during the final round, Arnold and Gerald run past Rex and his team. In this shot, Arnold's hair has five spikes on the left and four spikes on the right. His hair is supposed to have four spikes on the left and five spikes on the right. (00:10:03)
Tour de Pond / Teachers Strike - S2-E18
Other mistake: Tour de Pond: After Arnold's boat starts sailing during the final round, Rex is shown eating. In the next shot, Rex is suddenly staring at Arnold's boat in shock, but he is not supposed to notice that Arnold's boat is sailing until a few seconds later. (00:10:06)
Tour de Pond / Teachers Strike - S2-E18
Other mistake: Tour de Pond: When the wind starts to blow Arnold's boat during the final round, Arnold's right side hair changes from five spikes to four mid-shot. (00:09:50)
Tour de Pond / Teachers Strike - S2-E18
Other mistake: Tour de Pond: When Grandpa runs out of Arnold's bedroom to get the S.S. Gibraltar, Arnold's hair is layered over the door when it should be behind it. (00:03:42)
Tour de Pond / Teachers Strike - S2-E18
Other mistake: Tour de Pond: When Arnold and Rex are talking to each other at the end, when the camera zooms out, Rex's legs are briefly cut off before appearing mid-shot. (00:11:41)
Tour de Pond / Teachers Strike - S2-E18
Other mistake: Tour de Pond: When Arnold and Rex's boats get stuck together during the first round, Sid says, "Yeah, plus they're stuck together." In this shot, the microphones are hanging from the banner, and the blue bell is hanging upside down on the side of the stand; one of the animation cels has been placed upside down. (00:07:18)
Tour de Pond / Teachers Strike - S2-E18
Other mistake: Tour de Pond: When Rex's grandfather walks up to Arnold's Grandpa at the end, Arnold's left side hair has five spikes instead of four like it should. (00:11:12)
Girl Trouble / School Dance - S3-E18
Continuity mistake: Besides the fact that when Helga is sharpening her pencil, the desk arrangement changes, one of the students visible when she looks at Arnold is... Helga. This happens because the shot is taken from the episode "Helga's Love Potion."
Weird Cousin / Baby Oskar - S4-E11
Other mistake: Stephen Viksten is credited twice for voicing Oskar.
Arnold's Hat/Stoop Kid - S1-E3
Continuity mistake: When Grandpa is telling Arnold about how how he tried to cover his head when his hair falls out, the camera cuts back to him with his arm on Arnold's shoulder and Arnold has his hat on, even though the whole story is about him losing his hat.
Longest Monday / Eugene's Pet - S2-E4
Continuity mistake: In "Longest Monday" at one point in the episode, Arnold and Gerald run off of a bus and down an alley. Two fifth graders come chasing after them. In the next scene, you see Arnold and Gerald hiding in the sewer under the 5th graders. Arnold then crawls through a very narrow tube, and Gerald follows. You then see the end of the tube and Gerald come out of the it first, and Arnold climbs out last. It would be impossible for Arnold and Gerald to switch places inside the tube because it was way too narrow.
Mud Bowl / Gerald Moves Out - S2-E9
Continuity mistake: When Gerald catches his little sister destroying his cassette tape, the book she is wrapping changes color from blue to green. (00:12:30)






Answer: The episode doesn't really elaborate on who the kid was and what his motives were, so its pure speculation as to why he took it. Perhaps the kid could simply want a ball all for himself and decided to just take it, or was simply a rotten kid. The truth is the kid's motives are not important to the story other than it highlights Arnold was having a lot of trouble getting through the list.
Lummie ★