SiSSYFiGHT 2000 is, like, an intense war between a bunch of girls who are all out to ruin each other's popularity and self-esteem. The object is to physically attack and majorly dis your enemies until they are totally mortified beyond belief. You'll never come out on top without making the right friends, so be careful who you're nice to. Because in the end, only the shrewdest will survive with their social status intact!
Uh... In other words, this is a quick-playing, twisted little free web game, created by the dementos at gameLab (with funding and input from Word, a now-defunct web zine). Gameplay is a sort of rock-paper-scissors variant for multiple players, in which some choices require you to team up with others. A game, in short, of backstabbing and betrayal among little girls.
N.B.: Manifesto Games likes to link to free games we think are particularly interesting, even if doing so doesn't earn us any money, alas. But no, we aren't trying to build a comprehensive catalog of freeware, thanks.