Video Games Dead or Alive 3

Sorreh if there was another thread like this one..I'm not quite sure..Oo Anywho..lemme see..Dead or Alive 3 For the X-Box! I love that game! I only have 5 more characters to beat the D.O.A project..Ayane's father...I still don't get how to use some of the characters moves though. Like Leifang the chinese girl..oi..She's so hard to use and control..but I beat the project with her.the assasins I haven't figured out though..anyone willing to help out?