A naughty little RPG for playing the minions of evil. The war for heaven is over, the good guys won, and you are one of the few remaining infernals roaming the earth, trying to tempt humans into committing sins, finding recruits, and generally trying to survive.
The d6-based system is quick and simple, and there is very little setting or background, leaving it open for all sorts of storytelling. A true beer-and-pretzels RPG, the sort of thing you'd expect to come from 30 minutes of hard RPG-creating labor.
But is it really an RPG, or a thinly-disguised commentary on modern RPGs, organized religion, current foreign policy? You'll have to decide that for yourself.