Eric Boellner wrote:I couldn’t stop laughing when Titanus came out and then drops dead.

Yeah, I laughed really hard when Brent told me about that a month or two ago, along with the “worst vs. worst” idea.
We talked about the music beforehand, and I/we decided that the music should be fairly serious and build in tension over the first half of the episode, because the whole Neebs/Titanus thing was the payoff. I wanted to set the stage for a serious situation, build some nervous tension, and then deflate it like a popped balloon when the arrow hits Titanus. It was funny already, but with the epic music building nervously to that moment and then stopping in its tracks with in a “Huh?” kind of manner, I thought it would make it even funnier. Brent said something to the effect of, “Well, yeah dude, go for it!”
Seems like I/we were right! 
Alex Beard, composer
Original music for movies and TV!
http://www.alexbeardmusic.com