Mallory Zin is the final boss of COLD❄BLOOD, being arguably its most challenging and imposing character. Unlike other bosses in the game, it can only be fought by one character. Throughout the course of the battle, the player can notice how her body violently rattles and shakes, hissing and cackling with maniacal energy, wielding her own Mind Weaver weapon as she prepares to face off against the player. She is battled on a long volcanic arena that stretches across three screens, and she holds the distinction of being the only boss to be directly battled atop collapsing platforms. Mallory is an exceedingly challenging enemy that boasts the most versatile movepool of any boss in the game, including Silver's semi-clone rival Platinum Sin. Mallory will frequently taunt and insult the player throughout the match as she lays out her assault against them, questioning why they're bothering resisting them and attempting to convince them that what they're doing is wrong.
Being Silver's sibling by blood, it's somewhat clear that she'd be able to use some of the same attacks as him- indeed, she can use Sweet-Death Breath, Nerve Chopper, and Succubus Passion in almost the very same ways, though substitute any and all instances of dark magic with light magic. The key differences include Asphyxia Blessing charging up much faster, Nerve Chopper's power and effects being multiplied, and Succubus Passion giving Mallory the ability to both poison and burn up her enemies. She uses her HyperDrive whenever she feels like it, flying way high into the sky to raise her hand and begin building up her Superfire Strike. She will then point down at where she wants it to land, sending it along at a moderate speed- it will compress a little bit before transforming into a great, shining explosion that results in instant death to the player if they're caught in its path of destruction.
Unlike her blood sibling, Mallory has a full understanding of how the Mind Weaver works as a weapon, and makes extensive usage of it throughout the battle, primarily through the Art of Conjuring- these moves are based on harsh anima magic Mallory's been studying over the past few months. The Blister Arts have her create numerous flaming "puddles" on the ground, which will shuffle around briefly until Mallory raises her Weaver up high, causing them all to burst into high-reaching flame pillars- all the while, the player must leap over fireballs she spits at them. The Ripple Arts have her brew up a storm of nothing but winds, which push the player around in numerous directions as they're forced to parry through tornadoes and avoid random debris. The Voltage Arts have her blast extremely hot thunderbolts around the arena, which need to be parried as the player avoids a super-powerful electro ball the Zinner's sent after them. Additionally, the Gravity Arts have her form a black hole right behind her body, which she will be trying to push the player towards by attempting to gravitate them towards her.
Beyond her conjurings, Mallory can use her Teleport to move her way around the arena rather quickly, avoiding the player's attacks if she's taking too much of a beating from them. When not using her anima art, Mallory will be raising her Mind Weaver to draw a connection with her mind, blasting out Psychic Waves that numb, trap, and damage the player until they make contact with a surface. The waves seem to be speaking with Mallory's agony and anger, with special lines from her diary being spoken out as this occurs. Occasionally, she'll blast an unavoidable zap at the player using her Mind Weaver, attempting to drag them right over to her through an Obstacle Course of fiery walls she's conjured. The player must parry past each wall, then attack her before she can capture them in her arms, allowing her to try and perform a Soul Suck. If this happens, the maximum a player's allowed to heal throughout the match will slightly decrease, making survival harder.
This isn't the end of her versatile moveset. Her Ignition Draw has her hold back her Mind Weaver, setting herself aflame as she prepares to dash off at lightning speeds, leaving behind a wave of intense fire that needs to be jumped over. Upon making contact with a wall, she will attempt to dive down at the player with her aflame Mind Weaver. Her Flake Shot has her create a circle of solid snowflakes with her Mind Weaver, which revolve around the tip before she launches them all off at the player. They need to do several parries to avoid each one, as they're too fast to avoid on most occasions. Mallory's Hyper Slash, her final attack for this phase of the fight, comes when she slashes her Mind Weaver super fast, causing afterimages to get left behind as a huge beam of rainbow energy heads in the player's direction. It's easy to avoid, but deals high damage overall. For those playing as Silver, she has one more attack: her Violet Rush. If her eyes flash white, she will try to dash in Silver's direction, requiring the player to parry. If they don't, she will grab his neck and throw him into a wall, rapidly beating him up until he's nothing more than a bloody mess of bones on the floor.
When Mallory takes enough damage (1000%), she will fall down to her knees, looking severely wounded. If this boss fight happens outside the story, the battle will end as the screen fades to black. But those in the story mode, who are playing as Silver Zin, have one more fight to worry about as she enters a cocoon.
- You're going to need patience if you plan on scraping through this battle alive. Try to read the attack she's going to do next, and then avoid it so you can focus on any other obstacle that comes your way. Be sure you remember how to parry, as it will be your most important asset for this fight.
- To attack Mallory, you have to wait for her to get to using one of her Mind Weaver attacks. Don't come too close to her or she'll use her Weaver Counter, but come close enough so that you can hit her during the one-second frame it takes for her to charge up most of her attacks.
- Mallory's Mind Weaver has a set amount of HP (50%). If it is attacked enough, it will be temporarily disabled, leaving Mallory a lot more helpless and giving you many more shots to kick away at her.