Nothing (yet) for the door on the left. Just left it in to tease ;)
And 50 tries of what?
I think I know what they are talking about, having a similar issue. I have to try multiple times when walking into items to actually pick them up (even though the text says I found it), and in order to change costumes, I have to mash the change key.
Wonder if its tied to framerate?
Enjoying the game though, simple and nice variety.