Long time ago i found this... references, but only now i may post it here.
First image - Ryo Saeba (from City Hunter) and Johnathan Ingram.
Yeah i know that there not too much similarity between them, but if you see the anime, you'll understand what i'm talking about. :razz:
Next image is a monocycles montage, i know there already wrote about it - here new one, UNO.
Finally - most important (for me ) reference to Snatcher. Found in a MGS4 trailer, where's Otacon speaks about cell processor in the end of video.
....
Offtop.
Meryl from beginnig to the end of development MGS4