I worked out the 5th treasure in the title screen and have now got it. Very tricky. However, I'd suggest using ME, MYSELF and DOODLEY as synonyms for SELF.
I see that you've done an update, but you forgot to update the version. It's still 1.0.2.
I think you might have broken something. You can no longer go SOUTH from the horse stable. Can you check this? I can no longer get to piggy.