
Zero is shown to be a fan of old samurai movies, his outfit being apparent of this, and has to drink herbal tea before going to bed. His more human traits are much more apparent when not working. Zero in V's limo, talking about the tape he was sent. Regardless of his outward demeanour, Zero is a merciless killer when on the job, capable of taking out hundreds of foes with little to no remorse. Depending on the dialogue options chosen by the player, Zero can either be a serious, impatient character who consistently interrupts others and is not interested in conversation, or can be kinder, more patient, and more willing to cooperate.

Zero suffers from psychopathy, like many other NULLs, and suffers vivid nightmares and hallucinations due to his heavy reliance on Chronos. However, he retained his abilities from the NULL program and continued to use them during his time as an assassin. Due to his use of Chronos (and a near-fatal head injury during the war), Zero soon lost his memory of much of his early life. As part of the program, he was administered the experimental drug Chronos, which gave him incredible precognitive abilities allowing him to predict entire combat scenarios before they even happen, predict the correct answers out of an interrogation, and rewind time upon death.Īfter the war, Zero began working as a killer for an unknown employer that is implied to be the government. While his past before the NULL project is largely unknown, it's stated that he had a normal upbringing until his involvement with the program.


He was selected as a child to be a member of the Gamma NULL category, the most dangerous type of soldier produced by the program, because of his aggression and mental problems. Zero is a NULL who served in the Cromag War as an ally to New Mecca alongside another NULL, Fifteen.
