It is not the way the Coco looks but what he does that scares most. It is a child eater and a kidnapper; it may immediately devour the child, leaving no trace, or it may to a place of no return, but it only does this to disobedient children. The coca is on the look out for child's misbehavior on the top of the roof, the coco takes the shape of any dark shadow and stays watching. It represents the opposite of the and is frequently compared to the devil. Others see the Coco as a representation of the deceased of the local community.
"Duérmete niño, duérmete ya...
Que viene el Coco y te comerá.
Sleep child, sleep now...
here comes the Coco and he will eat you"