Six little cartoon girls enter a pastel playground where playful music sets a nursery school tone. That's where the niceties end. The goal of the game is to reduce the other little schoolgirls, in their little schoolgirl outfits, to whimpering sissies. Through a barrage of scratching, teasing, tattling and grabbing, players knock each other out of the game by chipping away at their opponents' self-esteem. There are various defensive moves -- cowering or licking your lollipop, for example -- but mostly this is a game of pure childish cruelty and aggression. Entertainment Weekly, which gave the game an "A" grade, says, "Sissyfight brings forth a player's nasty, repressed child like no other game -- except maybe fifth-grade dodgeball and corporate retreats."

To take the playground metaphor even further, the girls who go on to claim victory are the ones who succeed in creating a mob mentality by ganging up on their weaker or less clever sisters. As the game progresses, girls can talk to each other in little comic strip bubbles and, using various catty strategies, plot and connive to create powerful, esteem-destroying cliques that leave some poor girls on the outs.

And when things get real nasty, those bubbles often become filled not with offers to team up, but with astoundingly creative bursts of expletives and sexual and racial epithets. At times, in fact, the talk degenerates into a series of gross-outs worthy of, well, a group of kids who have gathered after class behind the portables. The smartest little schoolgirls are careful, though, not to go too far. In the game's strategy hints, designers warn players not to do anything that might turn the others against them. "Try making a girl with the name Jar Jar Binks and see how quickly you get snuffed out," they warn.

The game was developed in a yearlong process with the staff of one of the Web's most ancient (er, it's five years old) and most respected online magazines, New York's Word.com. The site is known for its ironic and smart essays and stories, but its savvy editor, Marisa Bowe, says that she had had a hankering to develop new ways to marry high and low art forms in an interactive setting, to make the most of the Web's potential for transdisciplinary opportunities.

"I thought that if we could take the geekiest corner of entertainment -- role-playing games -- and make a crossover hit that would appeal to people who aren't hardcore gamer geeks, then we would be onto something," Bowe says. "It seemed like a good business idea that might turn out to be popular."

That it has. It has been mentioned in EW, Wired and the Village Voice and become a selected link on the influential Shift. It has also attracted more than 25,000 registered users. At last count, it was bringing in a new registered user every minute. Its maddeningly addictive qualities account for much of the popularity -- the world record so far for continuously playing Sissyfight is 16 hours, 58 minutes and 20 seconds.

The key to the game's success, Zimmerman says, is that despite its retro-1980s Atari-style graphics, it succeeds in emotionally affecting players more deeply than games that realistically portray horrible acts of graphic dismemberment. "People have very emotional experiences playing Sissyfight," Zimmerman said, talking from a cellular phone in San Francisco, where he was speaking at a gaming conference. "People have said to me, 'I have never been so traumatized online. I entered a game and everybody realized I was the newbie. They jumped me -- grabbing, scratching and teasing me out of the game in a couple of turns.'"

Not surprisingly, Word.com gets a lot of regular e-mail feedback from its new flock of grabbing and scratching virtual schoolgirls: "This game is awesome. It is the meanest game ever. It is so much meaner than Quake or any of the games where you actually try and kill each other."

Another player effused, "It's great therapy and helps me get revenge on all my childhood torturers. I've never laughed sooo much while being sooo mean!"

Zimmerman could not be more pleased. "For me that's a real accomplishment," he says. To the Brooklyn resident, who gets paid for lecturing at universities like the Massachusetts Institute of Technology about the intricacies of gaming, "Every Sissyfight game is a miniature society with dramatic struggles for power. An aggressive player might emerge as a leader and direct the other players, but might later be branded as a bully and be destroyed by the mob. It's emergent complexity in action." And even though the graphics are low-fi, he says, the emotions the game spurs are high impact. "There are a lot of debates about so-called immersion in gaming," Zimmerman says. "I take the stance that immersion is not about the richness of the graphics, but about the total relationship a player has with a game. Play engagement occurs not just visually, but on strategic, social and cultural levels as well.

"Sissyfight 2000 proves you don't need technological extravaganzas of real-time 3-D graphics, reflection maps and shadowing to get completely emotionally engaged with a game."

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