Saints Row: Double Pack

A fully dynamically lit world: Car headlights and muzzle flashes light up the world of Saint's Row
Next Gen shaders allow the creation, in real-time, of effects previously reserved for movies
Pedestrians react to your actions and remember who you are. Fail to represent, and other gang members will lose respect for you. Bling up your latest car, wear expensive clothes and women will notice you
Limitless Customization. Play as fully customizable characters that are male, female or something in between.
Multiplayer, Co-op full story campaign has seamless integration (for example one player drives while the other shoots).