Here are some more:
5.Lavander town music
In the old Pokemon games there is a town called Lavender in which the player has to pass mutiple task. Everyone who has played the games knows there is some creepy as music in the background. But a lot of people claim that the music has actually caused children to kill themselves.According to multiple "sources" the music contains certain frequences that cause children to have suicidal thought.While there is no legit source proving it the music hoever remains creepy as hell:
HERE
6Godlshire kids in World of Warcraft

In WOW if you enter a certain room the kids in a city called Goldshire will form a pentagon.
They will just stand there doing nothing.
There is apparantly no story whatsoever to this and gamers even reported they heard whispers when they stood next to the children for too long.
There are no confirmations for either of those though.
7.Abortion in a children videogame?
In the game Earthbound you have to fight a boss at the end.
The curious thing is that the boss looks like a damn embryo.
On top of that the entrance to the boss looks like this:

Yes with a lot of fantasy this looks like intesticles and the entrance(of which I couldn't find a picture yet) is sort of shaped like a vagina.
The developers himself , Shigesato Itoi, has said the game was inspired by a childhood trauma.
He went into a theater and watched a movie in which a woman get raped.
Apparantl this has left quite a effect on him.
8. A game whispering your name
If you play the game Black & White for too long the game may start whispering your name.
I'm not kidding it does.
How?
Well basically the game is able to recognize basic names like Kevin in your account and can starts whispering it during the game.
According to the developers this as implemented to make sure the kids take breaks from the game.
How nice of them
It will sound like this
**** if this game would start whispering my name I would be F*ucking gone
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If you know more of these feel free to post them and I'll add them
You can also post scary soundtracks