The happiest day, also known as the birthday in the final VHS. What does it mean? Obviously the kids were killed, but who was the cause? My three guesses would be the figure, Anthony, or some character (presumably human) we don’t know yet. First off, Anthony has blood on his mask. Why would that be there? Secondly, the figure is shown in the VHS, hinting of his massacre. Thirdly is the unknown character. I believe they could’ve killed the kids, despite us not knowing him. A guess of mine is that the Figure could be this human character. Maybe the figure is possessed by a killer. We’ll need more evidence before we can prove that though.