Dead or Alive (Japanese: デッドオアアライブ Hepburn: Deddo oa Araibu?) is a video game series produced by Tecmo and developed by Team Ninja that is primarily composed of fast-paced 3D fighting games. Its story and characters are the creation of Tomonobu Itagaki, who has since left the company and is no longer working on the series.
In addition to its innovative countering system, the franchise is arguably as well known for its cast of busty female characters and the animation of their breasts. This aspect of the game's popularity led to the creation of the spin-off game Dead or Alive Xtreme Beach Volleyball and its sequels, where the women and their sex appeal play a more focal role than it does in the core Dead or Alive series.