185110c3__of_the_Year___Dusty_Cartridge__Borderlands_2
[Mechanic] Damage: [Borderlands 1] Basic damage mechanics. [Borderlands 2] 
Targeting specific parts of the enemy’s body will have different outcomes on how they take damage. Stunning and crippling will occur under certain circumstances.
Why Borderlands 2 will be Game of the Year - Dusty Cartridge
Borderlands 2