The most commonly missed one after you have the power glove is south of the maze area in B2.
As for the hint shop... I'm at a complete and utter loss. In the editor, it looks fine yet ingame it appears to be playing the wrong strings. At this point I'm close to just canning the shop altogether and having NPCs give you hints. I'll post a full bug report in the ZC release topics in a bit.
That's the one I'm looking for, but I have no idea how to get there. I have't checked the entire map, but I have no idea where to look.









