This book started off really accurate. It added a few scenes which were welcomed. It detailed things and gave more context for other things.
However once we got to the part near the end where the emotions are at the back of the mind... Things changed. They changed for seemingly no reason.
The ending of the movie is my favorite part. So when they changed things like the cliff getting pushed off instead of blown up (which they even mention "this would have been easier with dynamite") I was a little confused.
But then the original sense of self shatters when the tube breaks. Joy knows she wants to return all the memories, no hesitation, which is why she pulls (?) the cliff (it was precarious, they used a rope.) NOT to bring the sense of self back (which they never bring up after it shattered).
I don't remember what happened to Anxiety's created sense of self. After Joy gets Anxiety out of her attack, it immediately settles down. No one is trying to remove any sense of self, Joy just accepts the new one. The original emotions didn't even hear Riley go "I'm not good enough" I don't even think they realized there was a new sense of self. If it was there, I missed it, but it didn't seem to matter.
Anyways. The book was fun otherwise and my daughter loved it. But we were both just left really confused by the ending. She is staring at me writing this, she wants her thoughts to be known.