In *Merge Gun: FPS Shooting Zombies*, your primary objective is to eliminate waves of relentless zombies before they overwhelm you. Prepare for battle by upgrading your arsenal—purchase new weapons and combine identical guns to create stronger, more advanced models. These enhanced weapons will help you face the increasing onslaught with greater firepower and speed. Be vigilant, though—zombies and crows won’t hesitate to close the gap, even while you're reloading. Stay cool under pressure and strategically shoot explosive barrels when you're in a pinch to gain the upper hand.