The left analog stick is touch-sensitive; through various degrees of holding, tapping or pressing along with other buttons allows the player character Nina Williams to walk, run or evade.

The game's most remarkable feature is the ability to allow Nina to use her martial arts skills to break the bones of her enemies through use of carefully aimed attacks.

Strangely, this does little to actually disable opponents, as they often continue to use limbs that have been literally shattered, as well as survive blows to the head that would cause the skull to practically explode, without even losing consciousness.

Nina Williams, world-renowned assassin, has been hired by the CIA and MI6 to join a team that is attempting to infiltrate "Kometa," a notorious criminal organization.

The team's strategy involves gaining access to the target through a fighting tournament being held on the "Amphitrite," a luxury cruise ship owned and operated by Kometa.

A leaked video on the Internet showed a Kometa ship exploding within the Bermuda Triangle, and it is feared that they are working on some kind of superweapon in the aftermath of the fall of the Soviet Union.

She soon receives a communication informing her of the team's failure and the death of one of the agents named John Doe (killed by Kometa executive Edgar Grant), and that she must now conduct the operation herself.

As she progresses in her mission, Nina fights the Kometa's top executives, starting with the personal bodyguard and lover of Lana Lei, Bryce Adams.

Here, she encounters Lukas Hayes, a scientist who informs her about Kometa's plan to use satellites to heat and activate methane hydrate on the ocean floor.

However, the two grudgingly work together to escape and grab the helicopter rope line, with Nina having a flashback to the events before her father's death, in particular, the moments following when the two sisters comforted one another.