The character art is very cute! Good job putting together all those animations within the jam window!
I understand the idea behind the movement gimmick where Tail is constantly moving in one direction, but it does make it very difficult to deal with the boss enemies on their small platforms. I also found myself wishing I could change direction in midair, I kept getting stuck under platforms. Also I think I must've bugged the Anger boss, nothing seemed to happen when its health reached 0, so unfortunately I don't think I saw the very end of the game if there was anything after that. In all, I think you have an interesting concept here, combining platforming with grapple mechanics and combat, and I think with some more time to tune these mechanics it could really be worth revisiting!