Sorry for the delay, I've been off the grid the past week. Thanks for playing all the way through! Did you have a full party of 3 when you fought her. 2 vs her is pretty challenging, 3 vs her, my couple playtesters usually managed after a fail or two, but there's a lot of tweaking still needed for sure on all the encounters.
Currently no other ending, but after the jam finishes, I have some more content to add, in addition to make some changes based on all the feedback so far.