Click the screen to aim your sniper rifle at the target. Slide your finger to change the view for better accuracy. Maintain your position to steady the shot, then fire to eliminate the enemy. Achieve each level by defeating all targets within the allotted period. Watch out for bystanders to avoid penalties. Employ the magnification feature for accurate shots on faraway targets. Move forward through various settings like a street. Perfect your marksman skills to access new levels.