Okay, so now I'm on Karel's tale, and I did the ending where I defeat the sword guy with the Demon Sword, but it seems that the dialogue with the prince indicates that ending is "secret" and I can't figure out how to finish the level normally.
I hadn't even realized what I was reporting had been put on the list already - I had skipped from forum page 124 to 126 apparently, without noticing. I'll put more things in this one if I notice them, instead of wasting more posts.