Hope u get better!
Credit to @IOctoI I thought of making an Undertale OC & here she is! Nova is a skeleton (& the sister of Papyrus & Sans) who speaks in the font of "Nova Script" (like Sans speaking in the font of "Comic Sans MS"), has a voice like & is linked through technology through her magics & deformities. She has a mild social anxiety, but she can think up good puzzles to trap a human (her first live catch being a Neko!), but ends up driving a few to suicide (hence her theme song being the Lavender Town song). The suicides are just her accidents, she wouldn't hurt a fly, but she may stalk the player. The only time she's driven to harming the player is if she finds her siblings killed, in which she grows from shy to sad-mad in a matter of 10 seconds. She'll then set up fatal puzzles to kill the player. If the player gets past all the puzzles, Nova teleports to him/her without the stitches on her mouth & starts a boss fight. Her eyes will have black gunk in them & she'll say this before her first move: "You may have killed my brothers, but that's where you must stop! Oh, you wish to continue, [Name]? Then you shouldn't have done that... IT'S TIME TO DIE!!!" She'll use telekinesis (making your heart pink) to slam you against walls & spin you in circles, making you dizzy (which causes your heart to go dark green). She also uses spikes (white), data goop (blue), & connecting wires (white separate, blue connected) However, unlike Sans, Nova does more damage (4 damage) & has higher defense (3 defense) due to bringing the remains of Papyrus' "battle body" to use as a shield, yet she just as much speed. However, due to her deformities, she has a strained lower body & can't dodge as much as Sans can.