A combat armor developed by Dr.A. It is made with a special material to stand against zombies' attack to reduce its damage. By possessing this item in your inventory, your armor will upgrade to a certain level varying on the grade of the item.
Bulletproof Armor can be obtained randomly by opening Dr. A's Trunk after Zombie Scenario Re:boot. The grades of Bulletproof Armor acquired varies on the grade of Dr. A's Trunk. For instance, opening Low Grade Dr. A's Trunk will give you a Low Grade Bulletproof Armor.