Goukaku Boy Series - Z Kai Kyuukyoku no Eigo Koubun 285 is another Japanese Game Boy title from the Z Kai educational series. This game is geared towards mastering English sentence structures, emphasizing grammar and composition rather than solely vocabulary.  Gameplay likely involves exercises focused on constructing and analyzing English sentences.  Its existence reflects the varied types of educational software available on the Game Boy in Japan.  It is almost certainly from a Japanese educational software company, though further research may be required to find the precise publisher.  The name translates to "Passing Exam Boy Series - Z Kai Ultimate English Sentences 285".

Goukaku Boy Series - Z Kai Kyuukyoku no Eigo Koubun 285 (Japan)

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