The graphics in the game are quite simple with (Rag-doll skeletal animation), however the gameplay is full of features like: "Slo-mo" where you can slow down time, "Soul fly" allowing you to leave the bodyguards body to fly around the city and find your enemies, randomly generated cities and more.
Intel or PowerPC powered Mac
Mac OS X
3D graphics accelerator (32 MB or higher)
Free download at wolfire.com