User blog comment:AngryGodzillaPie/Hold On Hold On, Our Monsters Are Wrong (Some Of Them)/@comment-11458857-20131114104210/@comment-4858798-20131114135647

If they are not seen in the movie, they are not IN the movie, Joss Wheddon even said he put in no licensed monsters, and Demon, Cow Skull Giant, Dark Spirit, Alien Creature and Alien are behind the scenes looks or concepts of other monsters, it says so in the Visual Guide, I should know, I have it.