For this part the Moon was modified. None of the four trials are accessible via the Moon Children like normal. Instead each one takes the player to their respective boss room. However, it is still possible to go through dungeons normally and access boss rooms. The end goal is to get a boss remains (any will work) and then return to the dungeon and use the boss warp pad. The pad takes the player to the Twinmold Trial.

I thought this was a cool idea and I feel it worked out pretty well. Half the clues lead the player to use the Moon Children which are simply a faster way to get boss remains.