Organic Cave
‘Organic Caves’ is the third of the five worlds in the Game Boy Advance adaptation of Rayman Raving Rabbids. Unlike most of the game's environments, it does not have a strong basis in the previous games of the series. It is derived from a level once planned for includion in Rayman 4.
The Organic Caves is an environment unlike any other found in the Rayman series. It is an enormous network of underground caverns and tunnels, comprised entirely of organic material. Living tissue lines the cavern walls and fleshy protrusions dangle from the cave roofs. Rayman must also overcome creatures of mucus, while organic platforms help him to cross seas of stomach acids, and sinewy doors constructed by the Rabbids impede his progress.

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Stomach circuit, the first of the Organic Caves' five levels
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Gastric rivers, the second of the Organic Caves' five levels
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Swallowed treasures, the third of the Organic Caves' five levels
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Living cavern, the fourth of the Organic Caves five levels
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The sticky lair, the fifth of the Organic Caves five levels