User blog comment:Lord Loss/Monster Hunter Theory... Blog/@comment-4361439-20130528183518/@comment-4361439-20130528220147

I'm not sure if it was intended or at one point planned for Cha-Cha to reveal his face, but I think the designers always had this design down for the Shakalak's face. Look at the black part of the mask in this picture of the King Shakalaka:

http://images1.wikia.nocookie.net/__cb20080513165702/monsterhunter/images/3/38/ShakalakaKing.png

You can clearly see what I assume is part of the King Shakalak's actual pointy head.