There is no pedophilia. Episode 12 of the second series focuses on an adult woman acting in a seductive manner towards a teenage boy, but it is just an act, and her goals are non-sexual.
Some comedic eye damage occurs to yōkai characters, but it has no lasting consequences. Second series has several scenes of yōkai being hit in the eye, but it does no permanent damage to them.
A mother getting furious when her son misbehaves and the son being scared of her is a running gag, but no domestic violence is depicted, jokingly or not.
The second series has a very brief moment where a male yōkai is attacked by a swarm of robot vacuums and demands they "don't touch [him] there", but it is never elaborated upon or brought up again.
One prominent yōkai is lecherous and is shown ogling women and creating vaguely erotic pottery, among other things, which can be seen as him sexually objectifying women.
No jokes about gender presentation are made. In one episode of the first series, a male character and a female character swap bodies, and the female character in the male character's body attends an anime con while wearing a dress as part of her costume. They are switched back during the con, and the male character is embarrassed, but no one seems to mind him or find him weird.
No romantic relationships with age gaps are depicted. A yōkai takes on an appearance of a young boy to flirt with a young human girl, but his goals are not romantic in nature.
There is no blackface. A yōkai briefly takes on an appearance of a real-life black actor in one episode, but, being a shape-shifting yōkai, this character does not have a canon race.
A group of yōkai get eaten by a snake, but they survive and are unharmed. Jokes about food yōkai getting eaten are made frequently, but it is revealed that getting eaten is not necessarily fatal for them.
One sketch depicts two yōkai attempting to serve as police officers, which is portrayed positively. However, in other sketches cops have been portrayed negatively, being a constant source of comedic distress for a yōkai who tends to get arrested for minor transgressions.
The closest thing would be how Whisper insists that a Yo-Kai isn't the cause of whatever is happening, but Nate just brushes him off and it's played for comedy to show that Whisper doesn't know what he's talking about.
There are no exaggerated or purposefully disgusting or upsetting sounds, but sounds of sirens blaring or people screaming and crying can occasionally happen, as well as sounds of farting.
A brief scene in the second series shows a shadow entity force itself down a character's throat, and he is visibly struggling to breathe while it happens.
Minorities are not misrepresented in general. Some yōkai who appear in Busters Treasure arc may be seen as insensitive depictions of native people by some, even though they are explicitly not humans.
Some yokai induce behavior that could be seen as addictive or repetitive (pulling up all-nighters, for instance), but there is no outright depictions of such things.
Sometimes characters will be followed by invisible yōkai, but it is rarely depicted as scary. A human child and a yōkai spy on other yōkai frequently as part of their job as detectives, but they have no ill intent. An episode in the second series, Yo-kai Watch Shadowside, deals with the main character fearing that she is being stalked. A yōkai in the second series gets called a stalker for secretly following his friend around in order to protect her from harm, and is hurt by the accusation.
I think the worst would be in the movie, when two children, inspirited by Wicked Yo-Kai are shown bullying another, but they are not beating him up. Harrassment, yes. But no physical assult.
Several characters are shown as babies in flashbacks, a woman with an infant visits the main character's house in one episode. Several baby yōkai appear.
Shinto, Buddhism and Hindu religions are prominent inspirations for the show's story, and Shinto shrines are often depicted, but religion itself is never discussed.
Some scenes happen underwater, including a flashback by a shark yōkai about the time when he was a living shark. Characters visit an underwater palace in one episode.
There are brief scenes of characters being tied up with ropes in the first series, but nothing major or overly emphasized. The second series, Shadowside, features a character being strapped to a medical chair.
Two seperate grandfathers die and become Yo-Kai. One is shown on screen, and the other is simply talked about (the second grandfather passed on from old age, and his death is never shown on screen.)
A man is shown dying from shock and turning into a yōkai in a flashback, but whether or not it was specifically a stroke that killed him is not stated.
There is no alcoholism/addiction iirc but the third episode introduces a yokai whose death was involved him getting drunk after losing his job, which led to him staggering through the streets and bumping into some wooden boards, which crush and kill him. But they don't go too much into it, and they do not *explicitly* say he got drunk in the english dub. So, your mileage may vary.
Well, one of the main characters, like many of the animal yokai, used to be alive. His death and body are shown on screen in his debut episode and his death is a part of many of his motivations. And, as mentioned, there's other once-alive animals who are now yokai, and sometimes this is elaborated on.
There is no blood or anything TOO graphic, but it could be distressing.
Some Yo-kai are spiders (some humanoid, though one is not), but I can't remember if they appear in the show or only in the games. Then again, I don't really watch the show that much.
(slight spoilers)
One episode reveals that Blazion, a lion Yo-kai, burned to death in a tragic circus accident.
Also, in the first game, the first boss, Slimamander, attempts to kill the protagonist this way, but is stopped.
A grandparent dies and becomes a Yo-kai. I believe it might be a later episode in which this backstory is revealed, one that may not have been localized.
A yōkai in the first series can fire spikes out of his body.
The third series has an arc that takes place in a hospital, and syringes are present in some scenes.
Episode 14 of the second series has a character stab himself in the hand, but the camera lingers on his face, so we are not shown the event in question or any blood in the aftermath.
All deaths and injury are bloodless, but can still be disturbing.
One episode involves a character made of pudding being graphically eaten. She is in pain and mutilated. No blood, but it's still horrifying.