Scare your Friends: Scream Mirror

First let your friends to do a high pitched scream to break the mirror in the game with the highest range of voice. After a while, a random scary monster will appear on the screen with the most scary sound. Then the auto selfie camera will be active to capture the face of your friends to image and displayed for a specific amount of time.

Just using Capture Screen icon to capture that image or find it in folder on Android via File Explorer (com.sgt.ScreamMirror/files/screenshots) for your fun.