I really like the idea of playing as a monster that keeps an eye for humans in disguise, it's a very cool twist.
This game has a great style and personality with details like the customer book which is very fun to go through.
As others have said, it's pretty hard to understand the controls. If you expand this project it would be great to have a tutorial segment instead of having to memorize everything from a book.
Overall nice work and I'd like to see more of that!