I found this fancy key in level 15 in the secret goblin area, but I found no where to use it. I also think I missed a few hidden goblin scenes. I only have 3 in gallery and 2 in secret goblin area of 15. Also, does the zombie girl do anything yet?
Okay, I figured out the key and also the zombie girl has a really weird interaction hit box. I also did figure out the hidden scenes, the posters also had weird interaction hit boxes and you have to interact with them to open the scenes.