Board Thread:General Discussion/@comment-17468962-20140610143947/@comment-82.154.101.217-20140611180712

Add to that the appearance he is being given of a 'demon' - the debris embedded in his head is like a horn, and during the scene where he is covered in blood, he looks like a Japanese oni (read, demon). Indeed. I think this oni mask in particular suits your remark well:

https://img1.etsystatic.com/015/0/8129982/il_570xN.461599581_4uz2.jpg