This is the layer 3 cliff seen in DKC3. Here you can:
-view the BG in the sample file;
-see the BG uses 7 layer 3 palettes. Setting those is a bit difficult, nut the sample level shows you the setup;
-observe the layer 3 uses 239 tiles or almost 2 ExGFX files. Those are in the safe one.
-use the DKCR Sprite Status Bar patch. It's important.
-choose from one of the 4 palette options that come from DKC3.
-Rocket Barrel Ride;