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The Sep. issue of Nintendo Dream includes an in-depth dev interview re: Yoshi and the Mysterious Book (img 1 shows the interviewees; img 2 the clay models for development).
• Tezuka was involved in the initial phase. Later he was tied up with SMB Wonder, so Nogami took over the Producer role.
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ALT
ALT
7:33 AM · Jul 22, 2026
• The game was originally planned for Switch 1, but changed to Switch 2 during development.
• “No dying” isn’t to make the game easy, but to encourage no-holds-barred exploration.
• The encyclopedia concept only came into shape toward the end of development.
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• Different chapters may not exist in the same timeline.
• The naming system was complex to implement, but a team member insisted on it.
There are a lot more interesting details in the full interview. You can buy a digital copy to support real journalism on BookWalker.jp or Amazon.co.jp.
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