#....somewhat

Unlike Russ, Sans was only thought up of as a mere second thought; Nothing much was processed besides; 'Back up plan 2'

Gaster in this world, was aiming to take the Royal Scientist River's spot. He seeked with anger, jealousy, greed... He aimed with malicious intent; Which both boys gained, but sadly San's had the main blunt of it.

So after things were said and done; Both Papyrus and their adopted father, Lizando, fought fang and claw to settle Sans however they could during his toddler stages. He was a terrible; Literally scratching and biting everything and anything up. Toys, books, his own adoptive Sister, even Russ & Li themselves.

Sans bit so much, they actually invested in a special muzzle for him...

Occasionally, they found Sans killing small creatures... After they saw how gleeful he was about it, gaining small amounts of LVL with it, the two took the steps to correct it. Sans was gaining psychotic tendencies neither one wanted to have...

Sans showed the desired signs Gaster had originally wanted; Up into his young tween stages. He was gifted more than Russ with the killing and no remorse senses. Sans' soul was a dull dark grey when he was a baby; Something so rare for a monster child, even in their realm.

Thankfully with a General as your adoptive Father; Safe to say he had more ways to help Sans target this--... Oddly aggressive behavior in a more than healthy way.

│Sans was taught early how to wrestle; He adored to and rough house with his siblings. He really enjoyed doing it with Papyrus since he'd always hurt Alphys too much. But as Russ got 'lazier', not wanting 'to play', Sans turned to Alphy and going easy for her, in order to get her up to 'His Level'. │Learned how to control his strength at that stage; But when really upset, he has gone into a blind rage. │After the blind rage from his 5/7 age range, where a toddler was much easier to handle, and realizing he had actually harmed the ones he loved; That woke up Sans own internal thinking and realization to become someone better. Hasn't had a blind rage since that day. │Sans was always praised for things he did accordingly; And at first, he reacted negatively to it all... Hated the praise! But as time went on, he slowly enjoyed it.

Still, Sans learned the language of swearing, cussing, and everything else from Russ' friends. He would curse like a lil'sailor, not caring who was around. That stopped when Sans found a better role model, even if for a short while.

Once he gets into his teen stages; He really starts to even out and has the goal to become a General, like his 'Father'. Sans has called him as such, and has the dream to becoming a Duo General with Alphy's.

Alphy's and Sans have always battled since; Be it sparring together, simple sibling rivalry, or even a simple discussion. Those two were the best of friends and shared many likes and teased the other for their dislikes when Russ was no longer available and Li got killed.