In this scene from 1979’s Zombi 2, a group of humans try to destroy the zombies that are invading a small hospital on an isolated island.  Director Lucio Fulci later pointed out, in many interviews, that he used the same clips of Al Cliver throwing a Molotov cocktail and firing a shotgun multiple times in the scene.

Two things to note about this scene:

First off, it captures what is truly scary about zombies.  They are relentless.  They do not stop coming.  No matter how many you destroy, there’s always another one following behind it.

Secondly, Italian zombies actually looked like decaying walking corpses that are on the verge of falling apart.  That was one huge difference between the Italian zombie films and many of the ones that were made in America.