Ayane teams up with Kasumi and Hayate to kill the revived Raidou once and for all, leaving no trace of him behind. Helena, who arrived at one of MIST's hidden laboratory to secure the place, approaches a young scientist who act as Lisa's replacement and is responsible for Raidou’ resurrection, NiCO. Although NiCO attempts to revive Helena's mother, Maria, Helena rejects her plan, causing NiCO to escape from her. History The series was created by its original director and producer Tomonobu Itagaki after he became a programmer for Tecmo in 1992. During the mid 1990s, Tecmo was in financial trouble and was in need of a hit to boost sagging game sales. In this vein, Itagaki made a wager with Junji Nakarmura, the head of the company, assuring the president he would create a video game that would garner a fan base. Tomonobu Itagaki stated how he was dissatisfied with the way modern fighting games were presented; he missed the old arcade-style of play and had another vision for the fighting game genre. Following the initial working titles of "Ninja Fighter" and "Poligon Fighter", he named the series "Dead or Alive" to demonstrate the company's and series' fail or succeed status, and proceeded to form a division in the company named Team Ninja. Itagaki's inspiration for the series derived from the Virtua Fighter and Fatal Fury series in Japan and the Mortal Kombat series in America, with DOA's fast gameplay and sexual appeal drawn from the former series, and the ability to knock opponents off multi-level landscapes from the latter. When asked how he wished the series would contribute to the fighting genre, Itagaki replied: "I want people to remember DOA as a game that was very aggressive and combative. As to [...] how it contributed to the fighting genre – I look at it as something similar to how sushi was released in this country and became mainstream. You know, like, some people like graphics, some people like animation, some like flashy character design and so forth. Through DOA, we want to reach out to those people and become somewhat of a mainstream game." After Tecmo's classic (but at that time long dormant) Ninja Gaiden series was revived in 2004 by Itagaki and Team Ninja, they began linking it back with Dead or Alive, setting the franchises within the same universe with overlapping characters and events. As it was