Electronic Arts has released a new trailer for BioWare's eagerly-anticipated upcoming role-playing game Mass Effect 2, featuring a new member of its digital ensemble in the form of Subject Zero.

"Subject Zero is introduced in the trailer released today by EA," states the press release, "and it's apparent from the start that she may be too much to handle – even for Commander Shepard. ... Viewers will be able to see a little bit of Subject Zero in action, as she proves with firepower and fighting maneuvers how valuable an ally she will be in Mass Effect 2."

Be warned that there is some mild cursing, and be sure to stay after the end title card for a little something extra.

Video Games | Mass Effect 2 | Subject Zero Trailer

XBox 360 | Playstation 3 | Nintendo Wii

Wow, she sure does like to talk about female dogs a lot, doesn't she? I kind of like her, though.

"With an attitude to match, Subject Zero is a formidable biotic – as powerful as she is intriguing. Her detailed tattoos mark her favorite kills – "the good ones". Mystery and fascination surround this uncontrollable rebel, which will undoubtedly leave fans wanting more."

Find out more in the full press release, and then be sure to check out the four new Mass Effect 2 screenshots waiting in our gallery below.

BIOWARE REVEALS PIVOTAL NEW FEMALE CHARACTER IN THE EPIC SHOOTER RPG MASS EFFECT 2

'Subject Zero' Among the Cutting-Edge Digital Actors in the Latest Mass Effect 2 Trailer

Leading video game developer BioWare™, a division of Electronic Arts Inc. today revealed a key new character in the upcoming and highly anticipated sci-fi fantasy Mass Effect 2™. Going beyond the traditional virtual character, 'Subject Zero' joins a cast of compelling digital actors created by BioWare to further drive the emotional, human connection in Mass Effect 2's gameplay.

Subject Zero is introduced in the trailer released today by EA, and it's apparent from the start that she may be too much to handle – even for Commander Shepard. In a flurry of non-stop action showcasing her combat experience and strength Subject Zero reveals only a bit about her mysterious past, and says she's "been around, ran with gangs, wiped out some gangs." Viewers will be able to see a little bit of Subject Zero in action, as she proves with firepower and fighting maneuvers how valuable an ally she will be in Mass Effect 2.

In a keynote speech delivered to the International Conference on Intelligent Virtual Agents centered on the power of quality digital actors, Project Director Casey Hudson said, "Videogames have developed from a novel pastime into a medium with tremendous power to entertain and engage players. Compelling digital actors can bring a game world to life, and by harnessing cutting-edge technology, developers can ultimately unlock the full potential of emotionally engaging human interaction."

With an attitude to match, Subject Zero is a formidable biotic – as powerful as she is intriguing. Her detailed tattoos mark her favorite kills – "the good ones". Mystery and fascination surround this uncontrollable rebel, which will undoubtedly leave fans wanting more.

Subject Zero is the third party member to be revealed in the Mass Effect 2 universe following 'Thane', a deadly assassin and 'Grunt', an unpredictable Krogan who were introduced this summer. More details about the rest of Shepard's crew will be revealed in the coming months.