Dawn of War Screamer!

Dawn of War Screamer! is a screamer video created and uploaded to YouTube by a user VenerableDread in October 14th, 2006.

The video begins with a text: "What is wrong with this Dawn of War screenshot? Look Carefully" on a screenshot from the video game: "Dawn of War", now, the text fades out to reveal the image, (obviously the picture: one's zoomed in a bit), while the image is displayed, a text appears that tells the user to adjust their volume up to hear some clues.

However, after 15 seconds, at which point an inverted boy's face appears along with a loud roar, afterward, this leads to a text appearing: "So that's what's wrong with the screenshot? Weird", followed by: "Actually, VenerableDread strikes again! MEH!".

Link
NOTE : The following video contains a screamer!
 * youtube.com/watch?v=pYdLDKXFOfU