Obake Yashiki BGM

"Obake Yashiki BGM" is a musical theme composed for Super Mario World by Koji Kondo. It is a slower and more eerie and foreboding arrangement of the Super Mario World "Ground Theme" similar to "Castle" that plays in the game's Ghost House levels and the Sunken Ghost Ship.

Reuses
The following list does not include ports or remakes of Super Mario World.

Super Mario Kart
In Super Mario Kart, the beginning of the theme heard in Ghost Valley 1, Ghost Valley 2, and Ghost Valley 3 composed by Soyo Oka is an arrangement of the beginning of "Obake Yashiki BGM".

Mario Kart: Super Circuit
Ghost Valley 1, Ghost Valley 2, and Ghost Valley 3 all return in Mario Kart: Super Circuit, along with a new, more -themed arrangement of the courses' theme.

Additionally, the theme heard in Boo Lake and Broken Pier is heavily inspired by the Ghost Valley theme from Super Mario Kart and, in turn, "Obake Yashiki BGM" from Super Mario World.

Mario Kart Wii
returns as a classic course in Mario Kart Wii along with a new arrangement of the course's theme. This arrangement is almost identical to the Super Mario Kart original, but it uses slightly different instrumentation.

This arrangement is reused for SNES Ghost Valley 1, SNES Ghost Valley 2, and RMX Ghost Valley 1 in Mario Kart Tour.

Mario Kart Tour
GBA Boo Lake returns in Mario Kart Tour beginning in the 2022 Halloween Tour along with a new arrangement of the course's theme.

Mario Kart 8 Deluxe
returns in Mario Kart 8 Deluxe Wave 3 of the Booster Course Pass along with a new arrangement of the course's theme. Additional percussion is added to the instrumentation when the player is in first place.

Mario's Time Machine
The SNES version of Mario's Time Machine features an arrangement of "Obake Yashiki BGM" that plays in Bowser's Castle.

The version of Mario's Time Machine features a medley arrangement of "Obake Yashiki BGM" and the theme heard in Vanilla Dome in Super Mario World as one of two songs that can play in Bowser's Museum, the other being an arrangement of the "Castle" theme.

Super Mario World: Super Mario Advance 2
An arrangement of "Obake Yashiki BGM" can be heard in Game Boy Advance remake of Super Mario World, Super Mario World: Super Mario Advance 2. This version is more compressed than the original version and uses different, lower-quality synthetic instruments.

Super Mario Advance 4: Super Mario Bros. 3
In Super Mario Advance 4: Super Mario Bros. 3, an arrangement of "Obake Yashiki BGM" can be heard in the e-Reader levels Doors o' Plenty and Vexing Doors. This arrangement is very similar to the one heard in Super Mario World: Super Mario Advance 2.

New Super Mario Bros.
The beginning of the theme heard in Ghost House levels in New Super Mario Bros. is a slightly altered arrangement of the beginning "Obake Yashiki BGM".

Super Mario Galaxy 2
In Super Mario Galaxy 2, the theme heard in Haunty Halls Galaxy and Boo Moon Galaxy, titled 「ゴーストコンベア」 (Gōsuto Konbea, "Ghost Conveyor"), is an arrangement of "Obake Yashiki BGM". While Mario is riding Yoshi, shaker and percussion is added. The theme was arranged by Mahito Yokota.

Super Mario Maker
In Super Mario Maker 2, "Obake Yashiki BGM" is given an original, more ambient arrangement for editing Ghost House-themed courses in the Course Maker, using eight tracks that fade in and out randomly to create a dynamic mix.

"Obake Yashiki BGM" also receives new percussion parts for when Mario rides a Yoshi in the Super Mario World style, as this was impossible in such levels in the original game. Like other themes in the original Super Mario World, the theme adds to the instrumentation in its "Yoshi" variation.

Both of these new arrangements return in their original capacities Super Mario Maker for Nintendo 3DS and Super Mario Maker 2.

Super Mario Maker 2
In Super Mario Maker 2, a arrangement of "Obake Yashiki BGM" plays during the nighttime version of Ghost House-themed levels in the Super Mario World style.

Like in Super Mario Maker, this track is paired with bongo percussion when Mario is riding a Yoshi.

Paper Mario: Sticker Star
Paper Mario: Sticker Star features two arrangements of "Obake Yashiki BGM". The music heard outside The Enigmansion is a looping arrangement of the beginning of "Obake Yashiki BGM". The theme heard inside The Enigmansion, titled simply "The Enigmansion" in the Sticker Museum music gallery, incorporates "Obake Yashiki BGM" and "Waltz of the Boos" from Super Mario Galaxy.

The Super Mario Bros. Movie
In The Super Mario Bros. Movie, a sped-up arrangement of "Obake Yashiki BGM", arranged by Brian Tyler, is briefly heard towards the end of "The Darklands" as Luigi escapes from the horde of Dry Bones in the Dark Lands.

Super Mario World
The official soundtrack for Super Mario World includes an arranged medley of "Obake Yashiki BGM", the Underground Theme, and "Castle" titled "Mario! Stay Alert!" arranged by Soichi Noriki and performed by the Mario World Band.