1.Wait until your friend leaves his computer for a short period of time. 2.Quickly start this project. 3.Turn the brightness to the lowest and turn the volume up. 4.When your friend comes back, tell them that this has been happening since he's left. 5.Press "a" at the right time and it will play the creature attack sound.
All credits go to TheCreature and KJEKJE. Definitely works if done properly. Happy april fools!!!
