Cool animations
I can't say that it was all excellently planned out. Sometimes it felt like some moments just deserved a WTF? because they really did not fit it.
Besides the throngs of comments about the conformity/mask bs I just wanted to point out that inside he was different. The monsters used to be just like him before until they were touched by someone that helped them unleash their true self. So in essence it about finding yourself through the help of someone else and then later on helping someone else find themselves. Finding yourself could mean understanding yourself or even unlocking some skill that you thought you never had but in fact you do but have been hiding it for the sake of fitting in with the people around you.