Maybe u haven't played it in normal or higher difficulty?
I also wasn't aware of that and played it in easy automatic because it was more relaxing
One day I decided to become better by playing normal/hard/etc and from the 4th stage things are getting really harder since Shadow is really a formidable opponent the first time.
Its their way of making the game easier/harder... in the Easy Automatic it has less enemies and in the Hard&above it has more powerful enemies in places that used to have Marrionette:lol: