PS VitaPS4 Dead or Alive Xtreme 3 ‘Helena’ character trailer Koei Tecmo's introduction series continues. The latest in Koei Tecmo‘s series of Dead or Alive Xtreme 3 character trailers introduces Helena Douglas. If you missed it, the previous character trailer introduced Marie Rose.Dead or Alive Xtreme 3 is due out for PlayStation 4 and PS Vita on March 24 in Japan. An English version is also due out in Asia. Watch the trailer below.