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Ruby: Virtually all of Gulpin's body is its stomach. As a result, it can swallow something its own size. This Pokemon's stomach contains a special fluid that digests anything. | Sapphire: Most of Gulpin's body is made up of its stomach - its heart and brain are very small in comparison. This Pokemon's stomach contains special enzymes that dissolve anything. | Emerald: This Pokemon's stomach fluid can even digest scrap iron. In one gulp, it can swallow something that is as large as itself. | FireRed: There is nothing its stomach can't digest. While it is digesting, vile, overpowering gases are expelled. | LeafGreen: There is nothing its stomach can't digest. While it is digesting, vile, overpowering gases are expelled. | Diamond: Almost all its body is its stomach. Its harsh digestive juices quickly dissolve anything it swallows. | Pearl: Almost all its body is its stomach. Its harsh digestive juices quickly dissolve anything it swallows. | Platinum: Almost all its body is its stomach. Its harsh digestive juices quickly dissolve anything it swallows. | HeartGold: It has a small heart and brain. Its stomach comprises most of its body, with enzymes to dissolve anything. | SoulSilver: It has a small heart and brain. Its stomach comprises most of its body, with enzymes to dissolve anything. |