Analysis of information sources in references of the Wikipedia article "Getsu Fūma Den" in English language version.
The game is structured as a non-linear action-adventure with some light RPG elements, putting it somewhere in the same realm as Castlevania II: Simon's Quest, Zelda II, and The Goonies II. Several people have noted some similarities between Getsu Fūma Den and the first NES Teenage Mutant Ninja Turtles games - the overworld map, the sound effects, and the way Fūma controls similarly to Leonardo, right down to his overhead slashes - lead many to believe that it's sort of a spiritual successor.
The game is structured as a non-linear action-adventure with some light RPG elements, putting it somewhere in the same realm as Castlevania II: Simon's Quest, Zelda II, and The Goonies II. Several people have noted some similarities between Getsu Fūma Den and the first NES Teenage Mutant Ninja Turtles games - the overworld map, the sound effects, and the way Fūma controls similarly to Leonardo, right down to his overhead slashes - lead many to believe that it's sort of a spiritual successor.