New Easter Egg (People Playground)

Played on the substructure map and created 2 people, decided to make a fight.
Before he could start, one of them passed out, after 30 seconds he woke up but could not get up.
The man stretched out his feet and after a while began to twitch, I spawned the defibrator and tried to help him and I succeeded, but he could not move his arms, they hung when I raised them, then the man again fell and twitched.
He died and played the choir like in a church, it lasted about a minute and ended.
WHAT WAS IT???