This game is pretty simple, one user states something that happened to them, either fake or real, and the user below him tells him something he forgot to mention. For example: Player 1: I got a cookie
Player 2: What you failed to mention is that it was a super-cookie brought by aliens. I aced a test.
...Failed to mention that your school was actually a school for demons, ghouls, zombies and vampires. You're also a masochist, so you love being eaten and ripped apart.
What you failed to mention is that you are in the stomach of a giant dog, who ate you and your homework, and now you can never turn your essay in. Also, you'll die. But that's mostly a side note.