Hayaoshi Quiz - Ouza Ketteisen is a quiz game on the Game Boy released in Japan. It's likely a trivia-based game with questions focused on Japanese culture, history, or current events. Specific gameplay details such as question categories and modes are not easily available.  More precise information on its developers and publisher requires further research.

Hayaoshi Quiz - Ouza Ketteisen (Japan)

Hammerin' Harry - Ghost Building Company (Europe)