OK. Going through it...
"and forcing them to the walls, ceiling." Should be reworded to sound better.
"He was capable of using this ability to bypass the resistance of a multiversal being (Frisk/Chara) and damage them by sheer force of throwing their soul against the walls, however this accelerated how quickly he tired out during the fight." Pretty much all of this needs to go. He didn't go to 2-B for slamming Chara into the wall, and Chara isn't 2-B during this fight.
"While his attacks only do a single point of damage, this allows Sans to bypass the player's invincibility frames, essentially meaning he can not only damage any opponent regardless of their defense, but he does a single point of damage per frame (equal to 40 damage per second). He is also able to use his bones to attack the metafighting of his enemies, placing them over the various 'battle commands' and even the aiming meter. It is unclear how this would translate in an actual fight. Furthermore, upon accepting Sans' offer to spare you, he offers a hug. If you accept this hug, he creates an inescapable bone prison around it that never ends until their soul is destroyed. This technique is a guaranteed kill, but can only be done if his opponent's guard is down, though it doesn't necessarily need to be for long." There is a LOT wrong with this. The 1-frame hit mention seems odd, since that doesn't tell us much. All mentions of "metafighting" and the fake spare option should be removed as well, since one isn't applicable in fights and the other just uses an off-guard attack.
"shown to have incredibly potent spatial manipulation" Not incredibly potent. Should be removed.
"moving his foe straight into a new attack" He never shows this. It is possible to never get hit by Sans during the fight, and this implies his attacks are completely unavoidable.
"He has also shown the ability to "reset" an individual to their previous position." This is just teleportation of his opponent, which is already mentioned.
Thanks for all your help, Azzy.