It's the flash version of the intro animation of Hotel Mario cd-i game. I never played the game, just saw the movies at Youtube, so I decided to remake that spooky animation into a drawn version.
UPDATE - 07/27/2011
Ok, the sound thing was annoying me and since I decided to ressurrect this account, I uploaded a remade version, this time with synchronized audio, a replay button and a preloader (which ended up being kinda useless if you have a fast connection, because the swf file size is half the size of the previous one). I hope there are no more problems.
There are several little differences in the animation too, but you probably won't even notice them. That's because most graphics are the same, but some frames were lost at the importing process, so I had to redraw them. Hope you like.