The Blood Guardian is a twisted, foul monstrosity fueled by blood and a boss in Silent Hill: Book of Memories. The player will encounter this boss after completing Zone 18. It also transforms into its true form, Blood Mama.
The Blood Guardian is a monstrous creature fueled by blood. It is partly vicious and sadistic. Altogether, the Blood Guardian is a multi-armed mass and a female puppet-master.
The Blood Guardian symbolizes the subconscious resolution of Shannon. Their battle is a metaphorical one; symbolizing the struggle between the player's will and Shannon's, both attempting to assert their dominance over the other in order to change reality.