At the end of Prince of Persia i freed the evil God Ahriman!

:D

In Scribblenauts I made Santa happy by summoning a gun gave it to Santa and then summoned his wife... it solved the puzzle to say the least, what happened after I grabbed my star is on Santas bloody hands!

In my younger years, When I was playing Super Mario 64. After I got the star for retrieving the penguin mother's baby, I dropped him off a platform to see what the mother would do.

Probably shooting my wife in Fable II after she got mad at me for having an affair. It wasn't my fault though, I couldn't find my first wife, so I went and got married again, and as soon as I did that she started yelling at me!

I played "Big Brother" in Sims 1. After three days (Sims time) the person with the lowest status had to go into a room without a window or furniture and stay there. I stopped playing after a few moments because the people in the house who had every luxury you can imagine died in the first place ~_~.

Loads of stuff, I can't even remember what could be the worst out of it all.

Purposely let Sherry Birkin, the little girl in Resident Evil 2, get mauled by dogs.

The only thing I can think of is blowing up a lot of Lemmings.

Something else excessively evil.

I was bored in The Godfather. So, I decided to have some fun with the crappy AI. I got in a car, and drove it up onto the sidewalk, so the front touched the building. I waited till about three people were walking up to the car, before turning around. I took another car and drove it onto the sidewalk on the other side of them. I took out my pistol and fired a warning shot. They SPRINTED from one car to the other, over and over again. They couldn't cross the road. So I placed a stick of dynamite next to each of the cars, and they all died in a massive explosion.

I've also repeatedly thrown racket bosses off buildings, and random civilians into cars, or garotted them, or chucked them into fires, etc.