I really enjoy the game, big thumbs up to you. I appreciate the musics from Digimon World in it and all the details, this proves that you're a true digimon fan.
By the way regarding musics, I noticed a little bug with the boss battle music (it only happened with Leomon), maybe you already know that but I'm telling you just in case, sometimes the music doesn't sound as it should, I don't know how to explain but the music gets kind of crazy. I can't tell when this happens, like what is the cause.
Anyway, I'm learning game development, I'm not an expert but let's say I'm rookie level^^ and I can see that you put a huge work in this game, I'm impressed!