actually the method i used for uxie's murder mystery was really loving laggy simply because all the blood stains and whatnot were just items that you couldn't pick up. sort of a necessity, seeing as the point was to keep them there until the minigame ended: i couldn't do that with, say, debris, because they would fade way too early (10 seconds at most)
individually or in quick bursts that's OK, but when 33 people have died and there's 2 dudes left and there's 33 people worth of blood plus the bots made to look like their corpses still lingering around then there might be issues