Continuity mistake: When Roberto is looking at the team having a laugh with the still injured Ishizaki, there are 10 of them in the first shot with no keeper included and 10 including the keeper in the second. Both are wrong though, since Ryo has a substitute that is playing, so should be 11 players all along. Later in the episode when they run for the special training, it's 12 people, with Ishizaki still sidelined, but in the close-up of Roberto's foot you can see them run past, and it's 11 players. (00:07:05 - 00:10:10)
Continuity mistake: Ryo Ishizaki is wearing yellow boots at first, then blue boots when he's throwing balls to the training partners. (00:02:15)
Continuity mistake: Taro Misaki's flashback starts with him juggling the ball as he wears a pink shirt and black pants. The pants change to green in the next shot, but even more surprising, he gets blue hair. (00:09:45)
Continuity mistake: Mr. "OONN", the goalkeeper of Urabe's team, gets to wear a uniform completely different from his teammate's, but we saw him walk into the stadium exactly with the same tracksuit as the others 2 episodes earlier. And that he's wearing again in this same episode after the decisive goal. (00:07:05 - 00:13:45)
Continuity mistake: When Wakabayashi dives and catches the cross as it's still high in the air, Misaki and Tsubasa are to his right, then to his left. (00:05:15)
Continuity mistake: Wakabayashi is still on all fours, dejected after being bested by Tsubasa. He lost his baseball cap parrying the shot in the right corner, but now both his beret and his wounded pride are towards the opposite side of the goal. (00:05:00)
Continuity mistake: At the time of the injury, Ishizaki's sock in close-up is full white, blue-striped when he gets up. (00:19:30)
Blocked Off - S1-E6
Continuity mistake: Masaru parries with his face the shot that beat the keeper. He does so being close to the left post, but when the scene is over he's in the middle of the goal. (00:09:40)
The Football Is My Best Friend - S1-E4
Continuity mistake: When Taro and his dad see at the horizon Tsubasa and Roberto going home from their training, there's no football next to Taro's legs. His sneakers are also different, with no pattern. (00:22:00)
The Football Is My Best Friend - S1-E4
Continuity mistake: Taro Misaki says bye to his friends since he has to follow his dad elsewhere. Between the penultimate shot of him leaving and the previous and the last, the kids have changed entirely their clothes. (00:13:05)
Continuity mistake: When Ryo tells Roberto that a drunkard like him is unfit to be the coach, next to him there's someone with an orange jersey, but there's nobody wearing that color in the wider shots. (00:21:10)
Continuity mistake: Throughout the episode, the ranks of the team Tsubasa battles against keep changing and going back and forth between 10 to about 13 people.
Continuity mistake: When Tsubasa is staring at the soccer grounds sign, it is written with a different layout in different shots. (00:10:10)
I Can't Play - S2-E7
Continuity mistake: When Misugi slaps Yayoi in the face for unsettling his rival, Yayoi's cheek lights up instantly, but the bruise is gone immediately. (00:05:45)
Continuity mistake: Throughout the various episodes set at the sport facility near Yomiuriland for the final phase of the elementary school tournament, the ferris wheel changes size and number of its carts, and sometimes coloring.
No Victory in Semi Final - S1-E21
Continuity mistake: Misugi's goal happens with either a high ball that curves downward, or a ground-level ball that rises suddenly, depending on the camera angle. (00:20:10)
Continuity mistake: Roberto realises Hyuga's fright technique; as he does that, the person between himself and Mrs. Oozora is wearing a white shirt. Reaction shot on her, and it's a man in yellow that was in a different position earlier. (00:11:20)
Continuity mistake: When Tsubasa and Hyuga have their senseless head-to-head challenge, they have a low wall and a green hill and trees as background instead of the bleachers that were visible in the wider angles. (00:14:00)
Continuity mistake: Under the rain, Sanae's hair turns wet in the space of a cut (dry when she's waving the flag, damp when she comments that they need just one more goal). (00:01:50)
Continuity mistake: Urabe is commenting on Musashi's number 9 being dangerous. There is a man behind Ishizaki, with glasses and a blue hat. He's shorter than the shortest in the kids' group, but later in a wider view he's quite tall. (00:15:15)