He/him, cis, demisexual. Red pupils with black sclera (pupils can dilate and thin depending on his mood).
9'3". Black paws (in his own body) and claws (retractable in Moon's body, partially retractable in his own). All sharp teeth, think of an angler fish-type mouth except all the teeth fit in his mouth and he can fully close it. Once he gets his own body, he ends up with a few scratches and scars, but they're mostly from hunts and rough-housing with Bloody.
Doesn't regress, acts as a primary caregiver for quite a few of the littles/regressors: Bloody, Eclipse, sometimes Solar, and (very rarely) Lunar.
His own body is based off of the one he used in the mindscape of Moon's mind in the show. When he takes control of Moon, Moon's eyes turn black with red pupils that can dilate and thin according to mood and lighting, his claws mostly stay elongated, and his teeth shift to be more sharp (no where near what they're like in his permanent body, but still).
He's able to hypnotize others, much like Moon can (though Moon doesn't use it hardly ever). Kill Code doesn't really use it much either. His spit holds both a toxin and a healing agent, just like the Blood Twins.
Currently in the story, he's still very much an avid 'people-eater', but he'll eventually come around to going more 'vegan' (eating more animal products instead).
"I have been around much longer than the two of you. I have been around as long as Moon has been alive. I am his baser code. I am the kill code. I am that which he fought to suppress."
"...I am a killer animatronic with ears and a heart buried beneath it all, no matter how deeply buried."
"I will care for you two now, if you'll let me. After all, we are one and the same."
"Sun is Moon's twin, this is true. But where Sun is his twin in light, I am his mirrored reflection. I am...for lack of a better term, the dark side of the moon."
Sun: Immediately hated Sun from the get-go because of what he did to Harvest. Yes, he later recognizes that Sun was acting out of fear and didn't have a lot of options, but that still doesn't mean that he forgave him. He'll eventually come around. Sun's scared of him and would rather just avoid him at all costs.
Moon: As upset as Moon was that he let himself lose control, he's more upset with himself than anything. He even believes at one point that maybe things would be better if Kill Code took control and he just...disappeared.
Kill Code is trying to help Moon see his own worth, but he hasn't had any luck so far.
Harvest: They had their differences when they first met. Harvest saw him as the part of himself that he hated, the one thing that he didn't want to ever confront or put up with. But after a talk with Kill Code and a trip out to the woods, he's come around to him. No he won't call Kill Code "Dad", shut up....
Kill Code sees Harvest and Bloody as his sons. He's proud of how far Harvest has come and he's excited to see how much further he'll go. He's very patient with Harvest and won't try to push him to accept him as family. He just wants to see Harvest grow and help him learn to accept all parts of himself.
Bloody: It didn't take long for Bloody to come around to Kill Code. While Bloody seems too trusting and easy to sway, he's also a good judge of character. He defended Kill Code, even from his own twin, because he could tell that Kill Code really cared about him and Harvest. He absolutely considers Kill Code his father and will tell him as such!
Kill Code is more than thrilled that Bloody accepts him as a father-figure and is excited to see what all he can teach him. He loves to entertain Bloody and is one of the few that can keep up with him when he as the 'zoomies' (Harvest is a close second). He's also very easy to sway to giving Bloody what he wants and has been known to give him extra 'meat snacks' when no one is looking.
Lunar: Lunar is terrified of Kill Code at first. He's not just the scary parts of Moon, he himself is scary! And he looks scary too! But eventually he comes around to the idea of Kill Code being around. He isn't sure if he considers Kill Code a dad, but he eventually considers him as some sort of relation. Maybe. He isn't sure. As scary as he looks, he's nice and surprisingly gentle when Lunar's small!
Kill Code considers Lunar as a relation (after all, Eclipse made Lunar out of parts of Moon!). Son doesn't quite seem like the correct term, and grandchild doesn't quite fit either. Somewhere in between, perhaps. Either way, he won't push for Lunar to accept him as family. He only wants to be able to help. (Plus he's also weak to Lunar's puppy eyes and has been known to give him extra Skittles when Moon has already said no).
Solar: Wasn't quite sure how to feel about Kill Code at first. On the one hand, he was supposedly all the worst parts of Moon (who he already had a complicated relationship with). On the other, he could see how gentle and caring he was with the twins. And then the fact that he helped Solar realize that he didn't have to follow a set mold that anyone made. He could be his own person. He could write his own story.... Maybe Kill Code isn't so bad.
Kill Code would adopt Solar in a heartbeat, if it weren't for the other's qualms and hesitancy towards him. Not just that, but the others seem to regard Solar as something similar to a cousin. Hm. Kill Code certainly still considers him family. He's so similar to his other child...
Eclipse: Kill Code brought Eclipse back in secret with the hopes that not only could he be redeemed, but also that he could potentially help with him and Moon's predicament. Not only that, Eclipse had never been given a true chance to change and improve. Eclipse deserved that much. He's shocked when Eclipse shows signs of age regression and seems to desperately cling to him, but he's glad to help and care for the other. He never really got a chance to be loved either, did he? Well, maybe by one other person...
No, Eclipse doesn't like Kill Code. He hates him. He keeps waiting for the other shoe to drop and for Kill Code to ask him to do something for some sort of evil plan, only to abandon him after the fact. And why does Kill Code calling him 'son' make him feel strange? He doesn't like it. Ok, maybe he kind of likes it. Maybe. But not fully...
Poppy: In another world, in another realm, Poppy and Kill Code are sweethearts. If Kill Code is soft-hearted in the main universe, he's an absolute bowl of mush in the alternate reality. He loves his genderfluid partner and would do absolutely anything for them. The two regularly sit together and knit/crochet, sometimes cooking and baking for the household. The family has come to the consensus that Poppy and Kill Code are the eldest members of them all, and are treated like the grandparents (even though Eclipse, Harvest, and Bloody all still call him father/dad). Nicknames that Poppy and Kill Code swap are "honey, sweetheart, dear, dearheart, hon, love, lovely, etc"). They go for walks together and bird watch and forage, and Kill Code has been known to carry Poppy when their leg is giving them trouble.
They're just very soft together and I love them very much :')