Doom 2 a scary game?
Doomguy, the game's main protagonist from the DOOM video game franchise, begins a seventh level (E4M7: And Hell Followed) and goes around killing basic hell soldiers and imps, teleporting back to spawn after killing 8 of them. After getting through a door and going into a different section of the level, he killed another two enemies, and the video freezes, with text appearing on the screen: "Take a close look in that monster's ass!!!".
The video slows down notably and zooms into the sprite of a dead imp a couple of times, a heavily edited picture of an ugly face appears along with the song B.Y.O.B by System of a Down, set to start at a very high volume, The video ends with more text, saying "Ha Ha Ha !!! told you... Don't get mad... it was just a prank! :)".
NOTE: The following video contains a screamer!