Really lovely game and I love the Hollow Knight inspiration! Cool idea with the rythm based attacks, haven't really seen that from anyone else and making soundwaves your attacks is a cool approach on the waves theme. I had quite a few bugs while I played it in the web and in the executable build. It's a game jam though so that's expected xD. After talking to the first NPC there's an area where there are platforms you can't reach without having the double jump first. I still managed to get up there by hitting the enemy in front of the platform, boosting me up enough to get there and when I went through the entrance that's above the normal entrance it automatically took me to the credits and just broke the whole game. I couldn't attack anymore and there was no background music. Idk what happened there but I don't think that's intended xD. All things aside it's a really passionate game and I can tell that you put a buuuunch of hard work in it especially in the design aspect. Good job to everyone involved!