This "choose your own adventure" interactive video by Dr. Coolsex is very, very, very, very loosely based on Luigi's Mansion. I mean, there's Luigi and a mansion, but that's pretty much where the similarities end. What tickles me, though, isn't the faithfulness to the source material, rather that you can tell the mansion to go screw itself.
You're supposed to storm the mansion and rescue Daisy from Waluigi's clutches. Instead, I made Luigi stay at home, take Yoshi out for a walk, write some poetry, and do some baking. My God, there is a 75-minute, single-take clip of Luigi just shooting the sh*t with Mario on the couch. The sheer superfluity of it all is more hilarious than the adventure itself.
Luigi's Mansion Interactive Adventure! [YouTube]