I my Scass AU (maybe ScassTale? Itâs more of a new storyline for them than normal AUâs) these are Blasters
Sansâs DNA consists of some of Gasterâs and various other animals monsters had in archives. There was a limited access to them in the royal lab so he could not make unlimited copies. He did his best.
Sansâs DNA (some i will explain):
Gaster
Red Lionfish - see itâs skeleton! - Tail
African LionÂ
Bongo antelope - Horns
Dragon (yes, there were dragons once)
Wolf
Papyrusâs DNA:
Gaster
Wolf
Dragon (exctinct now)
Gastornis Bird (exctinct species) - Papâs feet
Capra aegagrus hircus (A goat - just google it XD) - Horns
And Thatâs it.
Sans was made first. Gaster wanted to have something with lionâs ferocity and Lionfishâs poison packed into dragonâs body. Also a wolfâs instinct to work in packs. It did not work cause he got a creature with catâs grumpy attitude, and no desire to please anyone. He bonded as a pack but to only one existing blaster (and way more than he ever did with Gaster - wonder why if he never treated him fair).
Sans as a Blaster is way more active than his regular self. Think more like a cat laying down and observing itâs prey, he looks lazy but is ready to jump anytime. Extremely mobile and quick on his feet but rarely wants to use that much energy for anything. For the record, he IS faster than Papyrus but just more lazy.
(Plus, once Gaster suprised him while he was laying under his desk and poor baby Sans got stuck on the underside of it because of his jump and pointy skeleton)
Papyrus was made about a few months after Sans. They were the only ones to survive infancy and to be honest, Gaster took a risk with Pap. He was younger and expected to stay in incubation tank longer but after Sansâs HP started to deteriorate, the scientist speeded up the process. He wanted to see the expected âpack behaviourâ from them both and later see if Pap was better suited to travel through Void. But Papyrus never went because Sans decided to volunteer for the work.
Papyrus was made From Gasterâs, Wolfâs and Dragonâs DNA as a basic recipe but also Gastornis Bird to make his legs more powerful (and from the hope that these genes would work better with dragonsâ). Also, a goat to be more ...manageable. Too bad his brother seemed to corrupt him all the time. :)
Papyrus is bigger than Sans and his body is more square-like. He doesnât have half as many spikes as his brother and only stumps. His bonesâ structure makes him heavier than Sans but with his powerful strides heâs usually able to keep up. (Especially when Sans feels lazy)Â
He is stronger than Sans by a mile but his reaction time is a little longer. Due to his sped up maturing he tends to be clingy and his desire to form or belong to a pack never really went away. (Sans is way more reclusive but the one person he could make a pack for is Pap.)
Both brothers could, in theory, transform back and forth between humanoid and Animalistic forms from the beginning (dragons were shape-shifters which came as an unwelcome surprise to Gaster)Â
But Gaster was treating them like animals. They were handled like a wild animals. Pups, Cubs they were, but to the laboratory staff it was like taking care of a baby crocodile. All funny until he is big enough to chop your head off.
They did have souls but they were not visible in their forms. Considered soulles and monstrous they were not popular. Asgore saw them only once. On an animalistic wild spree caused by chemicals when Sans tore down into a human toy with the ferocity of a lion. King was impressed... but also really scared.
Brothers were not given names but they saw an old textbook written by different scientists and created names for themselves from their scribbling.
They changed only after escaping the lab and finding yourself among a lot of bipedal monsters, they transformed overnight. Suprised that monsters treat them nicely now, they decided to never turn back, if able.
They changed every now and then when agitated or feeling threatened but seemed to keep it under control. No one seemed to catch on, miraculously.











