I dunno what this rainy temple world is gonna be about, but these murals that you see in every stage always foreshadow what you'll be doing in that stage.
So far, this level starts out kinda linear. All the normal paths through this building structure are inaccessible to the kid and are only meant for the legged robot sphere things. It's all about finding the climbing surfaces which are very clearly distinguished with a white texture. There's also some really dark doorways that you can't go through, but I saw those dark shadow people going through it. It seems like all these robot people and shadow people all know that they have some part to play in whatever is going on here. Whatever is going on, the kid is about as upset about it as the person in this crying statue.
Then it opens up into this huge area where there's a bunch of non-hostile shadow people hanging around and there's another statue of a person crying. This part goes back to the gameplay element of going to all the beacons that was used way back in the beginning of the first world. Once you realize this area is a circular perimeter going around a central tower, it becomes very easy to navigate.
Here you see that the fox has to yell at the statues to make them turn blue before the kid can yell at them to make them activate. So I guess in the first world, the fox had already gone and activated all the statues and was just waiting for the kid to do his part.
Then once you yell at the 4 activated statues in the middle, the fox dies and then the kid has a massive meltdown and then turns into a stone statue... and then he breaks out of the statue and becomes a shadow person.
Doing the yell action as a shadow person makes you do that spooky sound now instead. All of the shadow people moved out of the way so now you can enter the tower in the middle. It's mostly dark inside at first except for the middle part, and then when you climb around the middle part you activate something that makes a section of this room light up and shows you some more climbing paths. It's almost like this room is sectioned off in pie slices the same way that the 4 worlds around the giant key tower are sectioned off. Some parts you actually need to traverse these high ledges in pitch darkness.
Already back at the tower. The kid solves one last shadow puzzle and then... I'm back in the spiral staircase except upside down, and walking down towards the top of the tower. The kid realizes he's a ghost now, and walks into the light of the final keyhole door... Wow, that 4th chapter was very short. After the 3rd chapter being so long and difficult I was expecting this last one to be way better.
That was a really neat twist at the ending cutscene... After the ghost of the boy jumps down into the pit with all the grieving ghosts, you regain control of the character who dreamed this whole thing, and you can walk around in his house and go and look around in the kid's room to say your last goodbyes... I guess all the toys that you found in the game will be here in the kid's room to look at, but I don't quite know what the emblems do.
I missed quite a lot of collectables on every chapter. Also I never found a glowy white person on chapter 4 (assuming there is one in that chapter).