Another title in the Goukaku Boy educational series, Goukaku Boy Series - Yamakawa Ichimonittou - Sekaishi B Yougo Mondaishuu is a Japanese Game Boy game centered around world history vocabulary. Following a similar quiz-based format to other entries in the series, players would test their knowledge through multiple-choice or fill-in-the-blank questions, reinforcing learning through interactive gameplay.  Its release in Japan highlights the prevalence of such educational tools on the platform and the country's focus on academic achievement. While the specific developer and publisher are unknown, it's safe to assume they are a Japanese company aligned with educational game development.  The name translates to "Passing Exam Boy Series - Yamakawa Ichimonittou - World History B Vocabulary Problem Collection".

Goukaku Boy Series - Yamakawa Ichimonittou - Sekaishi B Yougo Mondaishuu (Japan)

Goukaku Boy Series - Shikakui Atama o Marukusuru - Suuji de Asobou Sansuu Hen (Japan) (Rev A)