Idea, make a extreme hard mode which is a minigame, there's 3 monsters, 1 the original where you made that monster walk pass through walls, 2 a monster will try to find you unlike the path finding player but walk all over the map and the creature may be blind, 3 a monster that teleports everywhere near the map that can teleport, like example teleporter like engineer and among us vent, if so the monster will teleport near player if it nears the teleporter.