Oh wow this game is huge for a game jam haha, it took me 52 minutes to get to the ending, but it was a pretty unique experience.
The story has lots of curious aspects, such as how different characters treat each other and how everyone carries the "weight" of being what they are (a veil of prejudice - misconceptions about oni, about women, and so on - and how the main character navigates through this whole mess). It also has a whimsical side to it with different types of creatures and all, like, the star-shaped hole in you-know-who's chest was wild!
The combat system reminds me of SMT/pokemon with the opposing elements, but with the interesting twist of changing stances. One thing to note is that the main character starts out very strong, with a complete set of skills, which can be overwhelming at first (I'm glad I have some experience with J-RPGs though). The possible strategies were really cool though, and I felt like almost every skill was useful in one way or another.
The battle against the "invulnerable" opponents was a real shounen experience - the whole fight was very enjoyable, cutscenes, new skills, a hidden power, the battle had it all hehe.
Super cool entry, great job with this one. I had lots of fun!