Zombie Shooter AR without gyroscope

Point your cell phone at the head of the zombie and shoot. An augmented reality game that does not require markers, gyroscope or compass to work. You must install OpenCV Manager from the play store.(https://play.google.com/store/apps/details?id=org.opencv.engine) A library of artificial vision that will allow you to intuitively manage your weapon to survive the attack of a horde of furious zombies.