Once you push play, hold F to turn your flashlight on. You will see Sammy, a doll, at the end of the hallway. Once he gets right in your face, press A to push him away
Credit to Scott Cawthon for inspiration from the FNAF 4 minigame "Fun With Plushtrap" Note: you can turn off jumpscares in the menu, but they are already on before that. THIS GAME IS ONE OF MY MOST DETAILED