Plot hole: Once Wakabayashi wins his challenge against the Nankatsu senior students, he instantly is back at his huge mansion to collect Tsubasa's message. Tsubasa was standing just a few meters away watching The Challenge as it happened, and Genzo had no reason to run away (if anything he was supposed to supervise the team during training), nor he's shown doing that. He's just gone, no explanation. (00:15:20)
Kyaputen Tsubasa (1983)
1 plot hole 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)