Due to the unpredictable nature of ragdoll physics, no two fights are identical. Development and Availability Developer: Developed and published by Rag Doll Software . Release Date: June 30, 2009. Platform: Originally released for PC (Windows) and Mac .

The lack of gravity allows characters to "float" around the arena, bumping into each other until limbs are potentially lost or a knockout occurs.

Fighting takes place in 3D spherical rings that move based on player positions. These arenas often feature animated backgrounds, such as Chinese dragons.

Players control a character's center of mass to swing limbs (fists and feet) into an opponent's weak spots, such as the head or stomach.