Team NINJA, Tecmo’s internal development studio, and Bungie Studios have teamed up to bring Spartan-458, a one-of-a-kind character from the Halo video game, as an unlockable playable character in Dead or Alive 4. Along with the new character, the two development teams are also introducing a Halo-inspired environment as an unlockable fighting stage in Dead or Alive 4. Both the new character and environment will be featured in the game when it hits shelves, along with the launch of the Xbox 360 system, this holiday season.