(Sega AM1's universe)
Chapter 1 is the first unnamed level of The House of the Dead 4 Special.
In 2003, after the death of her partner James Taylor, AMS agent Kate Green wanders an abandoned city aimlessly. After fighting hordes of creatures, she encounters agent G, who leads her on a quest to fight the infestation back to its source.
The agents take a car through the city streets to a building's parking garage. With the lights blasted out, leaving them in darkness, Kate and G exit the car. Justice, a four-armed behemoth who Kate previously defeated, ambushes them but is ultimately defeated. Kate and G continue into the building.