Bananan Ouji no Daibouken, a Japanese NES title (meaning "Banana Prince's Great Adventure"), suggests an adventure or platforming game where the protagonist is a prince on a quest. The name points to a story-driven game with possibly diverse levels and challenges. The "Daibouken" element points to a larger-scale adventure, possibly involving exploration, puzzles, and possibly some combat elements. Gameplay specifics, such as platforming mechanics or puzzle types, are unknown without more information.  The original Japanese title adds another layer of context, likely providing a fuller understanding of the story and overall adventure.

Bananan Ouji no Daibouken (Japan)

Banana (Japan)