yes
do both
:D
luigi's Self Deleteluigi's mansion is an all around creepy game with good fun packed in with colourful cartoon ghosts to keep you on your toes
thanks to urban legends spreading faster than aids on the message boards of several websites, they claim that if you stand in a specific spot in a certain room and wait for lightning to strike, you'll see a shadow of luigi's shadow hanging there
video:
http://www.youtube.com/watch?v=sbpmMmc4ob0&feature=player_embeddedit's as if he used rope or the vacuum tube to do the job
obviously a very creepy glitch
...or is it?
many also suspect that the game was intended originally to be much darker than it is now
much darker.
shadow people from hell valley galaxysuper mario galaxy never fails to entertain me
the second, however, I have a different opinion
if the play heads on over to the first level of the shiverburn galaxy, turn left, go into first person camera, and look at the cliffs, they'll see this:

someone hacked into the game's codes and found the original skybox file eerily named "hellvalleyskytree":

evidently not trees, people have suspected that they're leftover textures from the beta of the game, as told from the folder from which the file was pulled from, beyondhellvalley
video:
http://www.youtube.com/watch?v=xu0vtkU02uM&feature=player_embeddednobody ever mentions these people, but they follow you around the entire map (they're part of the skybox, durr)
creepy nonetheless, and odder than nintendo was potentially going to make a game for kids with the word hell in it
there's already fanfictions and more theories that they're the natives of the lands mario goes to (people have reported seeing the same skybox and people in the grandmaster galaxy)