Audio problem: When the handball team captain is about to throw, the ball bounces making the sound it'd make if he were bouncing it indoors, not on a grass field. (00:13:40)
Kyaputen Tsubasa (1983)
1 audio problem in The New Soccer Star - chronological order
Starring: Arihiro Hase
No Easy Way - S1-E12
Audio problem: At the beginning of their conversation outside the house, the Captain and Roberto's audio is off-synch with the mouth animation. (00:01:40)
Kick-Off for the Future - S1-E3
Trivia: International versions change Roberto's message to his coach at San Paulo FC, adding for some reason that he met a girl he fell in love with. This girl is never referenced nor appears, since, well, she does not exist? Roberto mentions that he met Tsubasa instead, who he wants to bring to greatness. (00:12:40)