I need a little help :(

[The SSStylish one]

After beating the final boss on level 20 there is another boss, a mix of Sanctus and Saviour. A few questions.
1) WHERE THE HELL IS HIS HEALTH BAR???
2) How to beat him? I just grab his left hand when becomes possible since nothing else works... It does not seem to work, though.

 

[VeNGeD]

When he tries to strike you with his right hand, dodge that then use buster on his hand. Then after you dodge that he will swing his left hand, from the right of your screen jump in the air and use buster, this will cause him to lean forward then use buster on his head.

Hope this helps.

EDIT: I found a YouTube video.

Devil May Cry 4 - Final Boss