Vampire Killer is consists of six non-linear stages with
a boss at the end of each stage.
Each of these stages are made up of three separate areas
with a door at the end that requires a special key to unlock.
These keys are hidden throughout the areas and often require a
puzzle to be solved in order to obtain it. All of the levels consist
of separate screens and often loops at times, creating the
illusion that Dracula's castle is a maze.