The tabs for Luigi's Mansion is based on a standard 10 hole diatonic harmonica key of C. Here are the tabs:

Opening:

-3".....-3" +5 -4 +5
-3"...-3"...-3" +5 -4 +5

Main:

+5 +5 +5 +5, +4 +5 -4 -3
-4 -4 -4 -4, -3 -4 +4, -3' -3 +2

+5 +5 +5 +5, +4 +5 -4 -3

End:

-4 -4 -4 -4 -4,

(-3 -4 +5 -5 +5 -4 +5 -4 +4 -4 +4 -3 -3" <--- play all really fast)