* When you go into [[JourneyToTheCenterOfTheMind Dream's Deep]], you see Luigi's innermost thoughts swimming in the background with Mario on his own whilst Dreamy Luigi is trying to find his way to the place. That onimous music, dark background and lines like "Don't leave me, bro!", which is also sent out in massive letters, really makes you feel for the [[StuckInTheirShadow younger brother.]] Especially for players who are younger brothers themselves. This gets worse when you realize that Luigi is suffering from a nightmare during this sequence.