I love these kinds of games, where devs just let you jump wherever on the map and not giving you the strict paths. The game's aesthetics are beautiful and charming, while the music is complimenting it.
The only complaint I have that the controls are a little bit stiff, there are not that many options for control while in jumping state, NES Ninja Gaiden imo has that perfect movement for this kind of game.
But all in all, it was a great experience!