I'm an office-drone gone over the edge!
Postal 2 is one of those games. The game follows you, the postal dude, in his exploits for pleasing his wife, the b**h, in her day-to-day chores. Each day of the week, typically 3-4 quests will be activated for you to accomplish before the day ends. Not only does this game make fun of its own genre, but society as it is now. With an Osama look-a-like reading up on terrorism in the library, violent video game protestors (whom protest by shooting people that work for a game company that makes violent games), and even difficult to read vote ballots that won't seem to punch all the way through.
The true innovation in this game is that its possible to fire your gun just a few times and still complete the game; however, as the game was made to do, piss you off more than you're already stressed, by forcing you to stand in a 5-minute line at the bank, you can break lose and do as you please with shooting everyone you feel needs to be shot.