Please send me a link to your footage if you're uploading anything. I really love seeing stuff like that.
Yes, there are end credits if you finish both dungeons (=green and yellow). I can give you directions if you're stuck, but I'll need more information about where you currently are.
Also, some people have experienced a bug on the top floor of the desert dungeon while in the left bedroom. I haven't experienced the issue myself, but my advise would be to save on the top floor of the desert palace just in case.