Thanks! I'm glad you liked the art and movement.
Oops, I accidentally moved the items you're supposed to get from Calli (the other feather and legendary item) downwards instead of upwards, so both are unobtainable. I'm not sure why you weren't able to talk to Calli or AO-Chan again, it works on my end. I was planning on having other music for the Underworld and Calli boss fight but I didn't have time to do it.
Also, thanks for hosting the Jam! It was a lot of fun and a great first Game Jam for me!