This guy looks totally common and harmless. Until he takes out his bazooka! Yes, he is armed and determined to deal with his enemies no matter what. And you need to help him in that. You will be moving through the level with your weapon at the ready. The bad guys will be attacking you unexpectedly and you must react in time and pull the trigger before they can do any damage to you. With every new level, the number of enemies will be growing, so there will be no time to relax!