Drago Cubes valley

We found a small gang of monsters who want to take over our planet to implement their plans. You caught them at a time when they took counsel how they do the right thing. First neutralize those who are closest to you, and the rest will just have to be afraid of you and squeezes his eyes shut, and they run away alas can not. However, we have a limited number of grenades, not scatter them just so, and plan every attack.