Here's the spoiler-y version, because I do have a couple more
Phoenix Wright T&T
Mat Engarde's reveal with his eeeeeeevil wine glass
9 Person 9 Doors 9 Hours
The incinerator, oh my god the incinerator. When you look back retroactively, you realize June didn't have a fever, she was feeling hot because you picked a path that fails to save her past self from burning to death.
Bioshock
Bioshock Infinite
Colombia is such a happy town, and everyone's happy and smiley and above the storm clouds in the clear blue sky. What could possibly be wrong with this quaint utopia? ...oh that's right, the 1900's were racist as ***k.
Zero Escape
That red thing in the sky isn't Mars, and it's not the moon in a lunar eclipse...it's Earth. Also that old guy is Junpei - he was 22 years old when you fell asleep.
5. Far cry 3 - Battling the Ink Monster before having sex with some sect leader
4. Far cry 3: Blood Dragon - The entire intro scene. Neon, explosions and a gattling gun. ****in' love it.
3. Alice: Madness Returns - Pretty much every cutscene in this game is genious
2. Dwarf Fortress - (http://static.fjcdn.com/pictures/Dwarf+fortress.+I+was+reading+combat+logs+and+saw+this_4b51a3_4950280.png)
1. ObsCure - So I was playing this game with a friend of mine in a dark room on an old, battered PS2. We find this broken elevator shaft, and after wasting all my pistol ammo trying to hit the thing that was jamming the mechanism, we finally get it working. We ride it to the first floor which is very dark. We stumble out trying to find a light switch, and fail. My friend decides to waste his precious flashlight battery to aid us finding the switch. He swaps on the flashlight, and in the corner we see this fat creature of tentacles and hair, staring at us. Its darkness spreads across the floor, too dark to be lit up by the flashlight. I quickly pull out my ready loaded shotgun, and fire every shell I have at the thing. The shotgun sound change into a *click* *click* *click* and the thing is slightly wounded, but far from dead. This is when larvae start to pour out beneath it, slowly making their way towards us. The flashlight dies and all we see is black, waiting for a 'game over'.