Spooky’s House of Jump Scares is a free game that you can download on Steam. (You can also download a fart on Steam, FWIW.)
Now that you’ve read the game’s title, you know exactly what it’s all about. This dad was bored one day so he decided to prank (Or traumatize) these two small children by letting a 4 year old play the game. Here also shares advice on how you can pull off this hilariously devious prank on the kids in your life:
“Tell them it’s like Minecraft.”
This video goes out to everyone who thinks that kids these days are way too pampered with their “participation ribbons” and all that sort of stuff…

This dad has a nice PC gaming setup, and the kid’s probably so thrilled to get to play. Well, until the tears come anyways.
Evil. Genius, but evil.
The kid’s really brave and keeps playing, so maybe this style of parenting pays off.

If you want kids who can keep their composure in stressful situations (Or that have quick reflexes and stab anyone that ever startles them, it could go either way…) definitely get them setup with this game.