Virtua Fighter (Japanese: バーチャファイター?) is a series of fighting games created by Sega studio AM2 and designers Yu Suzuki and Seiichi Ishii. The original Virtua Fighter was released in October 1993 and has received four main sequels and several spin-offs. The highly influential first Virtua Fighter game is widely recognized as the first 3D fighting game released.
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. It is primarily composed of fast-paced 3D fighting games that begun with the original Dead or Alive in 1996. DOA is the creation of Tomonobu Itagaki, who has since left the company and is no longer working on the series which continues without him. In addition to its countering-based play system, the franchise is arguably most known for its female characters. This aspect of the series’ popularity led to the creation of the spin-off game Dead or Alive Xtreme Beach Volleyball and its sequels, where the females and their sex appeal play a more focal role than it does in the core Dead or Alive series. A live-action film adaptation DOA: Dead or Alive was released in 2006