1. Turn the sound on.
2. Start the game.
3. Tell your friend you bet (s)he can''t find the three differences on the two pictures.
4. A scary zombie picture appears after 15 seconds with a loud scream.
Please use carefully and take care of your phone!
P.s.: This game contains ads. I finance the development of free games this way. Without ads I can''t continue to provide the games free. Thank you for your understanding!