A man with a gun runs for his life while being chased by two zombies, one of which has lost an arm.

two zombies (one with only one arm) chase after a man in a blue sweater, the man has a gun and is frightened

guy running from zombies

a guy getting chased by two zombies

Leon escaping from green zombies

green people chasing a kid with a gun that doesn't know how to use it.

A man wishes his gun would work while being chased by an alien who is quoting the road runner