This is based on opinion. Please don't list it on a work's trope example list.
Tear Jerker / Sonic The Hedgehog 2006 Lets Play
Near the end, at The End of the World, they are burned out. Most of the commentary by the end is Kung-Fu Jesus reciting song lyrics in monotone. It's depressing, to the point of making it hard to finish watching the Let's Play.