Kick-Off for the Future - S1-E3
Other mistake: Urabe mentions that Nankatsu lost to Shutetsu 30 to 0 (which seems rather uncanny for a 40 minutes match), but the score mentioned in the first episode was 10 to 0. The more extravagant result ends up being the canon one.
Kick-Off for the Future - S1-E3
Other mistake: The kid who wants the soccer team to stop training is told off by Sanae, who points at the good efforts on the pitch. The animation of the team in training has noticeable errors, with a player that suddenly appears coming out of nowhere from behind the rightmost one, who is standing immobile in front of the goal and after a second disappears abruptly. (00:14:05)
Other mistake: When Sanae tells to the team "Ishizaki is right!" and gives them a pep talk, she's practically a hobbit next to the others, and a couple players are on odd mounds as if it were a baseball field. On a soccer pitch you just can't have that sort of uneven ground. (00:19:00)
Other mistake: When Miss Ozora tells Roberto that he should have shown her The Letter from the beginning, Tsubasa is drawn looking in the wrong direction. (00:17:25)
Other mistake: When Ishizaki is unwrapping his leg from the bandages, he's wearing the football boot he is NOT wearing before and afterwards. (00:15:10)
Other mistake: Misaki's dad just arrived at the stadium, and seeing his son play, he strokes his beard with a satisfied look. Problem is, he's still standing and the hand that rubs his chin was holding a toolbox he did not have time to put down (or anywhere to place it on, for that matter). (00:10:40)
Other mistake: After the first extra time, only 8 players (plus the keeper and Ryo) are back to the bench for all the pep talk and chat. (00:16:55)
Kick-Off for the Future - S1-E3
Other mistake: When Manabu is approached by the bully, his glasses in close-up lack the bridge. (00:13:40)
Other mistake: Supporters cheer Ishizaki when he is trying to break the birdcage tactic. One of the guys who screams at him though is wearing the "S" jersey Shuutetsu supporters wear. (00:17:55)
Other mistake: Tsubasa's diving header hits the post square in the front in close-up, but in the wide shot it rolls out for a goal kick to the right of the post. (00:09:20)
Blocked Off - S1-E6
Other mistake: Masaru apologizes for the blunder (he butted heads with a teammate). Tsubasa cheers the rest of the team; look at the goalkeeper. He's wearing the same uniform as the rest of the players instead of his red jersey. (00:08:05)
Other mistake: Tsubasa's mom calls him because the movers' truck is leaving. He kicks the ball outside the window, and is downstairs to catch it, quite the impossible feat especially when you factor in that he kicked the ball with not much of a vertical trajectory, almost in a straight parabolic pattern out of the window, and meanwhile he also found time to wear and fasten his shoes. And it's not even played up as something strange. (00:03:00)
The Verification Test - S1-E16
Other mistake: 15 players were picked for the team. Genzo is injured, 11 are playing. Three are MIA with no explanation. Morisaki has to parry 10 shots for every other player, he parries 100 total. Ryo Ishizaki though is still a substitute, so that would mean there's the unexplained absence of even one more team regular.
The Fight for the Final - S1-E24
Other mistake: At the end of the previous episode, Taki crossed for the corner, and the keeper punched the ball before Kisugi could head it. This episode shows that Taki crossed for Izawa instead.
Other mistake: In the aerial view of the stadium that follows the intermission with the sushi chef and Genzo at his mansion, there are 23 players on the field. One is the referee, you might say. In that case, the view is missing the linesmen. (00:07:20)
No Easy Way - S1-E12
Other mistake: The same play-by-play commentator covers both the Nankatsu and the Meika matches, happening simultaneously in two different areas of Japan (and with no television coverage...of course, who does live commentary on elementary school matches anyway?).
No Easy Way - S1-E12
Other mistake: Morisaki is the substitute keeper, but he has the number 1 jersey (See next episode for an explanation about this part being prolly a mere continuity error). He also did not appear in the tryouts or the previous matches. He is wearing the Nankatsu Elementary school jersey but it's supposed to be a different character from that keeper - incidentally, in the match against Shuutetsu that keeper did at least a great save, better than anything Morisaki is able to do in these early episodes.
Other mistake: There were 3 defenders not taking part to the birdcage strategy, but Tsubasa does not have to beat any of them, except Takasugi who tries an American football tackle that would be penalized even by the very loose standards of the referees of this anime, and that happens as if he had to intercept him coming from behind; by every logic he should be in front of him. (00:20:55)
Other mistake: Roberto meets Genzo at the shrine in the early morning, and Genzo is pumped up and ready to go to the match. In another scene, Roberto is at the stadium hanging out on his own, but Genzo still hasn't got to the stadium and will arrive only much later when the match is about to begin.
Other mistake: Eleven Nankatsu players run past the 4 Shuutetsu guys who are looking for Genzo. They all wear the team jersey, the keeper is missing. They have just players total, 10 plus the keeper, the extra player was never supposed to be there. (00:04:05)