Not like these guys need an excuse to get up and fight each other, here is a storyline that’s supposed to make sense of it all. It basically sets the stage for why the final boss is a glowing-translucent babe. Cutscenes from the Story Mode reveal little snippets from this tale, so knowing this helps make sense of it all. The plot is weak, much like the previous DOA stories, but who needs an excuse to fight?
Soon after the death of its founder, Fame Douglas, the ultranational organization DOATEC descended into a state of corrupt decay. However, it has now received a beautiful successor to its leadership: Helena, the child that Fame Douglas left behind. After losing both her father and her beloved mother to the darkness of consiprace, Helena has chosen to place herself in the middle of the maelstrom in order to put an end to the chain of tragedy once and for all.
Meanwhile, the man who holds the true power of DOATEC, Prof. Victor Donovan, has once again locked himself in the Bio Lab Core deep within the dan, dark bowels of the gigantic Tritower as he continues to covet his dream of creating the perfect human weapon. Its code name is Alpha-152 , and it is the result of the ultimate evolution of hyper-cloning technology, birthed from a DNA sample of the Mugen Tenshin Ninja Kasumi.
On the other side of the world, the Mugen Tenshin Clan has gathered, a family of Ninjas that have suffered innumerable pain at the hads of DOATEC. The young leader of the clan, Hayate, his heart burning with the desire for revenge, has brough together the most powerful group on Ninjas known to man and given them one simple order:
“DOATEC must be destroyed!”
Now, as the 4th Dead or Alive Martial Arts tournament is in progress, the first feal rumblings of movement from Alpha-152 can be felt coursing through the magnificence of the Tritower complex. It is at this moment that these two great opposing powers, intertwined by fate, are destined to collide in a cataclysmic inferno of fire and smoke. This is the final battle, the one that will settle everything…
…at least until DOA5…
