A combat assistance product developed by Dr.A. This will help to amplify your attack to deliver better damage to zombies in the battle. By possessing this item in your inventory, your attack power will upgrade to a certain level varying on the grade of the item.
Attack Amplifier can be obtained randomly by opening Dr. A's Trunk after Zombie Scenario Re:boot. The grades of Attack Amplifier 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 Attack Amplifier.