Kill puppies for satan
Kill puppies for satan is an indie role-playing game designed by D. Vincent Baker and published by lumpley games. Players portray people who do evil things (like killing puppies) so that Satan will give them supernatural powers.
The manual is flippant, full of swearing, and bereft of both capitalization and art. Character generation takes about two minutes, and includes scores such as how many people hate your character. The manual suggests a way to start that avoids the storyteller having to come up with a creative way to force the players to cooperate. It is only available online as a PDF.
The author gets hate mail and posts about all of it.