The most interesting thing about this funny picture is that Ubisoft’s developers chose to fill the bottom of their world with water. Fall through in a hole in the world, splash. Most games I’ve worked on have an infinite space to fall through below (sometimes followed by a crash of floating point problems) or a death plane a few meters down.
The watery underworld solution probably worked better in the original Assassin’s Creed, during which Altaïr channels the Wicked Witch of the West, dying on first contact with water. That was great for wharf and ship-based assassinations. Anyway, in the sequels, Ezio can manage what most medieval citizens couldn’t: swim. The result was that I got to swim below the world, looking up at its pedestrians and guards without any ability to affect them. Until I got bored and rebooted.