umm not really needed its just on the cavemen and olmec for now and thats just red eyes if you cant do that i feel sorry for you
EDIT: Tomorrow i plan to release a new version with all monsters red eyed then more demonic things will happen
(hint: the 4th area should be made of flesh and bone.)
one of those changes will be this only im gonna try and get blood to squirt from the floor when you jump on it