Painkiller: Hell & Damnation's launch trailer and introductory cinematic is set to one of those cheerful little tunes you can't get out of your head. This is the exact opposite of its marketing efforts so far.
The track in question is called Painkiller, of course, and is by one Siri Svegler - I'll save you the trouble of Googling the iTunes link.
Painkiller: Hell & Damnation is out now on PC, and is headed to PlayStation 3 and Xbox 360 in January. It's a remake of the classic horror shooter from People Can Fly, built by a couple of members of the original development team at The Farm 51.