Frisk could be one of the characters watching. Given their role in the game, they would be interested in Sans' fight as it could impact their journey through the Underground. Additionally, Undyne might be present. She's a strong fighter herself and would probably be sizing up Sans' techniques, maybe even learning from him or being critical of his fighting style depending on her mood.
Well, in this fanfiction, it might show different perspectives of various characters seeing Sans fight. It could be really interesting to see how different characters react to Sans' combat style, whether it's his unique attacks or his strategic moves during the fight.
One interesting 'sans fight fanfiction' story could be about an alternate universe where Sans has different powers during the fight. For example, he might be able to manipulate time in a more extreme way than in the original game.
You can try websites like Archive of Our Own (AO3). It has a large collection of fanfiction, and you can search specifically for 'sans fight fanfiction' there. Just use the search bar and type in the relevant keywords.
One thing that makes it special could be the unique view it offers. Instead of just focusing on Sans fighting, it's about everyone seeing the fight, which gives a broader perspective.
In the fanfiction, a character might also react with confusion. Sans' attacks and his overall fighting style can be very unique and hard to understand. A character who is used to more straightforward combat might be completely bewildered by Sans' moves, not knowing how to counter or even react properly.
It's really hard to say. RWBY characters have a wide range of abilities and combat training. Ruby is super fast and has a powerful scythe. But Sans has his magic like his bone attacks and dodging skills. I think it would depend on the situation. If it's in an open area, RWBY characters might have an advantage with their long - range attacks. But if it's in a more enclosed space, Sans' teleportation could give him the upper hand.
A heroic type of character might see the Sans fight as a great challenge. They would be eager to face him and prove their worth. They might respect Sans as a worthy opponent and try to fight him honorably.
Papyrus might be initially shocked. He's used to Sans being more laid - back, so seeing him in a fight could be quite a surprise. His eyes would widen and he might gasp.
Another plot twist could be that Papyrus realizes the fight is all an illusion. In the fanfiction, he might see through some sort of magic or mind - control that was making Sans fight. So, he then has to figure out how to break the illusion and save Sans from this false battle.