I have exctracted ( using PSicture ) textures from those WAD files, but i don't know how to extract them.
I've opened the files with Hex Edit, i can see some .TIM .RMD .DB .ANM files but i don't know how to extract them. He told me the lowpoly models were made with Maya.

Attached some Wad files from the game. If some of you can extract and open the model ( Hana & Rain ) i would like to know how to do. Thanks, i'm trying to extract them since 2009.
Some WAD files from the game : http://www.mediafire.com/?8lre8clbo7e9b05