Those adorable nutjobs collectively known as the comedy group Dr. Coolsex have done another interactive YouTube video. This time around, it's Luigi's Mansion, and it's epic! Help Luigi go to the haunted mansion and navigate the horrors inside to rescue Princess Daisy (making out with Waluigi and getting Luigi to come out of the closet in the process you'll see what I mean...).
Although I do recommend you put off actually going to the haunted mansion until at least the dance break. (Although the song is pretty cute, too...)