Click the screen to move your soldier across the battlefield. Dodge enemy fire by swiping left or right. Pick up coins scattered throughout the level to buy upgrades and first aid kits. Apply the first aid kits to heal your health when hit by enemies. Shoot enemies by clicking the fire button, aiming carefully to preserve ammunition. Clear each level by overcoming all enemies or reaching the end point. Upgrade your soldier's weapons and armor between levels to boost your chances of survival. Watch out for enemy patterns and modify your strategy accordingly to move forward through the game.