#undertale headcanons

okay so I realized why I headcanon Charas voice as I do and also got reminded that when I was like 4-6 years old (I didn't knew English at the time and yes its important and yes I don't exactly know how old I was and yes it bothers me a lot) i got sleep paralysis (also important) and basically I woke up in the middle of the night was scared because my body no move fast like normal so call out my mum and turn by head toward the room where we slept and see someone like siluet of women laying where would be another bed (hard to describe please refer to sketch please) with dark hair couse it was dark but they had like pale skin/pale clothes and they calmly as if explaining something said Ale já nejsem tvá matka. (But I am not your mother.)(and yes it was perfect Czech). They sounded exactly how I headcanon Charas voice. anyway I screamed they disappeared and my mom came from kitchen (was right next to our bedroom).

heres rough sketch of the room

ah and mind you I wasn't exactly active on the internet in pre 2020 era so I didn't knew that Undertale was a thing before the quarantine and even then I was mostly confined to Czech and Slovak internet because me not speak/understand English at the time and afterwards I didn't question my headcanon on Charas voice until the withuhwhy's video about Gasters irl feats and someone's having sleep paralysis with gaster or smth also reminder it happened in like 2012-13 kinda hard to pinpoint because I forgotten when exactly it happened but I know I was not yet in school (age 7/6 in 🇨🇿 is start of school)

Papyruses are lays-next-to-you cuddlers

Ehehehe alright~

Sans: he definitely wasn’t an expert on human biology when monsters left the underground. The first time sans smells blood on his human buddy he’ll worriedly ask them if they’re hurt. If they just say it’s their period, he nods and pretends like he knows what that is lol. They aren’t freaking out so he figures he doesn’t need to either. He’ll Google it later.

Papyrus: his first time encountering a human on their period was when he crossed paths with a stranger. He worriedly offered the lady medical assistance and she called him a creep. When he smells the same type of blood on his buddy, he’s a lot more cautious about asking if they’re hurt lol. Please be nice and tell him why, he’s gonna think all humans will just bleed at the drop of a hat.

Star: as a member of the peace guard (police force) he had to take courses on basic first aid including ones about how to care for injured humans. The topic of periods came up- aka are they actually in crisis or just going through a normal biological function lol- so he already knows what’s up with his friend. He won’t mention it.

Honey: Star tells honey everything that goes on at his job including all the gross human fun facts he learns. So honey knows what a period is. Unfortunately Star exaggerated and honey thinks his friend is at risk of bleeding out over the week if they don’t eat enough to replenish the blood. His buddy will eventually see a pattern where honey stress bakes them meals every time they’re on their cycle.

Red: he won’t mention the scent of blood, but red is oddly protective of his friend for the day. He assumes they’re healing from an old wound. So in his own way, he’s trying to keep his friend safe as they recover.

Edge: he immediately snaps at his friend to show him where they’re injured the second the scent of blood hits his nose. Edge is mortified when his poor flustered friend tells him what a period is. Any time they’re on their cycle afterwards, he will not so subtly sneak them chocolates that he just happened to have on him. … he might be tracking his friends cycle. Or he just always has chocolate. Who knows lol

Mal: he unfortunately knows what a period is thanks to cash. Mal thanks lady magic every day that he wasn’t born a human. Anyways if his friend shows up smelling like blood, he’s gonna threaten to unfriend them if they bleed on his furniture. Beat him up, he deserves it.

Cash: he’s active on the human side of the internet and found out through memes what periods were. If his friend ever shows up on their cycle, cash will subtly make a bunch of blood puns until they notice.

Oak: he’s distressed every time one of his human friends smell like blood. It takes a lot of reassurances and explaining to get oak to settle down. And he forgets the reason why every new period friend gets, so the cycle repeats :(. If it was a roomate they could give oak a heads up when it starts so he remembers what to expect.

Here’s the post introducing the monster!

Triadscog mages are born with at least one of these traits: a third arm on their spine, larger than average ribcage, barklike raised lines on their skin, really thick treelike limbs or unnaturally wide hips.

These mages have poor skills in shapeshifting and illusion magic due to their monster parents magic so we’re often shunned from human communities due to their appearance.

They tend to take after the fertility side of a triadscogs magic and are good with plant based spells.

Only 3/4ths of monster subspecies have teeth. There are many that directly dissolve food that enters their mouth, or have solid plates for grinding. One monster type will use its tongue like a boa constrictor to squeeze food into a pulp!

The monsters that do have teeth will go through three sets in their childhood. They are born with soft baby teeth, get a harder toddler set then finally loose those to be replaced with an adult set in late childhood.

River monsters, Shyrins, lox, lizardfolk, vegetoids, tsundreplanes, sky serpents and night howlers all constantly loose and regrow teeth over their life like sharks. The average tooth only lasts about two years before being replaced.

Goat monsters, mouslings, gyftrots and goblins have constantly growing teeth. They never loose their adult set. Instead they have to rely on hard foods to grind them down, or go to the dentist every couple of months to have their teeth filed.

Most other monster types will wind up with a further 2-3 sets of teeth as they age. Skeletons loose their first adult set at 150ish and replace them with new teeth the same year.