Amazing game! And the switch between graphics and point of views is definitely my favorite. I recently played a game called Bonnies Bakery which is similar and I absolutely love both games. Also, there seemed to be a character or something at the bottom of the screen behind one of the trees? No sure what it is but i was sure intrigued by iy. 10/10 great game!!
The thing behind the tree is the 4th camper. Their placed behind it to be out of view in the 2D Portion as it's meant to show that Lamu didn't notice them.
The camper was taking a leak after going into the woods where you can hear them finishing up, their break was interrupted when they heard their friend Tasha getting killed by Lamu.