Other mistake: Wakabayashi throws the ball to his teammates leading to the hat-trick; the ball in that shot is of the wrong size, almost twice as big as Genzo's head. (00:18:50)
Continuity mistake: Four players charge Wakabayashi illegally...but only three walk away once the referee whistles. (00:12:30)
Continuity mistake: Ryo agrees with his forceful mom that tells him to encourage his team members; he replies with his hand behind his head, or down his side. (00:08:30)
Continuity mistake: When we see the defeated team at the end of the match, the players change position between shots (look at the numbers on the jerseys). (00:20:25)
Continuity mistake: Yayoi's hair is the wrong shade (hazel brown and not a foxy red) when she is commenting Wakabayashi's well-being with Jun after the charge. (00:13:15)
Continuity mistake: In the shot just before the end of the first half, all the players in the field go bald. (00:07:10)
Continuity mistake: Ryo's mother arrives at the stadium and greets Teacher Maruyama. She sits down, and Maruyama's tracksuit lost the blue stripes on the shoulders, wrongly colored beige like the rest of the suit. (00:06:45)
Continuity mistake: A person next to Yayoi at the beginning of the episode is wearing big shades and a visor. The visor has some unintelligible characters in red at first, then in another shot the word "Godzilla" in black. (00:02:30)
Continuity mistake: The goalkeeper incites the rest of the team in their dastardly plan. He's facing right. Camera pans across the Shimizu team and their murderous faces, and the one to the far right, looking to the left, is the same keeper. (00:10:40)
Continuity mistake: End of the first half. Ryo hands a yellow towel to his right and a blue towel to his left. They are swapped around in the reverse shot, and Shingo Takasugi is standing with them too. (00:07:25)
Factual error: Wakabayashi is seriously injured and everyone is aware of that and acknowledges it, but no substitution is made. That's criminally irresponsible, especially with the team being in the lead. The referee himself couldn't ignore this in a real match, since the player couldn't even perform a goal kick.