Super Mario World 2: Yoshi's Island/Unused Background Content

Layer 2
Use the PAR code to change the Layer 2 background, and  to change the background palette.



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An unused background image with pink trees and a lot of clouds. This background has many different layers of parallax scrolling: The trees, cloud top, and the first 6 rows of clouds all scroll at different speeds.



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An earlier, less detailed version of the existing jungle background.



The grassy cave background has some content that is never seen in the game. This background is usually set against a black background gradient, so the trees at the top are never seen. The only level in which this background is set against a non-black gradient is in World 2-8, and the room it appears in is not tall enough to display the top of the background.



The pine forest background first seen in World 2-1 also has unseen content. The more traditional style clouds are located at the top of the background image, never seen in-game.



These tiles are found in the same background bank as the final jungle background. This may have been part of an even earlier jungle background, from the period of development before the art style changed. Unfortunately, every other tile of this earlier background seems to have been overwritten.

Layer 3
Use the PAR code to change the Layer 3 background, and  to change the background palette.



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(Palette ID unknown)

Just some dots. Unused dots, but still dots. (Snow, perhaps?)

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Another unused, less detailed jungle background image. The foliage and trees scroll at different speeds.

This works well when combined with the unused layer 2 jungle image.

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Some scratchy mountains set against clouds. This could have been used in World 5, but isn't.

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An unused background layers consisting of many stones.

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A variant of the background used in the first room of World 6-8. The black clouds are not seen in the used version of this background, and the moon in this version scrolls, unlike the stationary moon in the final version.

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This game uses many different cloud background images, but this one is never used.

The Starry Night background has some hills at the bottom, but in normal play it's always obscured by a Layer 2 image.

The actual background used in World 6-8 has some unused content as well. The moon is fully rendered, though only part of it can be seen in normal play, and a gathering of upside-down clouds is just above that. The smiling cloud are just a result of the wrong set of animated cloud graphics being loaded.

Just like the above background, upside-down clouds can be found in the sunset background. It is used three times in 6-1, and each time loads a different set of clouds. In the first room, it displays smiling clouds. In the second room, the clouds are garbled blocks. In the third room, it displays the clouds seen here.

Background Gradients
Use PAR code to change the background gradient.

A good number of solid color backgrounds are not used. Gradient IDs follow:

Light Blue:

Sky Blue:

Red:

Pastel Green:

Lavender:

Pink:

Blue:

Tan:

Ecru:

Three background gradients are likewise unused.

Layer 2
Use PAR code to change the background palette.

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Unused daytime version of this background. The palette used in-game is a sunset palette.



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Pink variation of these spiral blocks found in certain levels.



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An unused autumn version of the mountain background seen in World 1-1 and many other parts of the game.



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A view of the ocean with a dark green palette.



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An odd purple and red variation of the standard jungle background.

Layer 3
Use PAR code to change the background palette.

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Lighter and darker palette variations for the crystals found at the bottom of some crystalline cave rooms.

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Brown(?!) and light blue color variations of the wavy water layer.