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Black 4 is a free shooting game provided by www.bestgames.pk. Search the lab and eliminate all enemies. Use WASD or arrow keys to move, and use the mouse to aim and left click to shoot. Click R to reload. Press number keys 1 to 8 to change weapons, or just click the weapons at the bottom you want. Click the grenade at the top right corner. Hold F to aim and click to throw. Hold E to research. Start fighting now!