So they're...butts? Well, it's certainly very unique! I liked their funny voice acting and the different characters. The mechanic where you control different characters to do different things is unusual and creative; it reminds me of some of Amanita's weirder stuff.
It did seem very buggy, though--right-clicking the characters didn't do the special powers the book says it should. I wasn't able to get very far (I couldn't open the secret door in the cave) and I think that was why.