| Pokedex Entries: |
| Gold | This POKéMON lives in cold water. It will leave the water to search for food when it gets cold outside. |
| Silver | When it walks around on the ground, it coats its body with a slimy, poisonous film. |
| Crystal | A mucous membrane covers its body. Touching it barehanded will cause a shooting pain. |
| Ruby | WOOPER usually lives in water. However, it occasionally comes out onto land in search of food. On land, it coats its body with a gooey, toxic film. |
| Sapphire |
| Emerald | WOOPER usually live in water but come out onto land seeking food occasionally. On land, they coat their bodies with a gooey, toxic film. |
| FireRed | When it walks around on the ground, it coats its body with a slimy, poisonous film. |
| LeafGreen | This POKéMON lives in cold water. It will leave the water to search for food when it gets cold outside. |
| Diamond | It lives in cold water, half burying itself in mud at the bottom to sleep. |
| Pearl | When the temperature cools in the evening, they emerge from water to seek food along the shore. |
| Platinum | When walking on land, it covers its body with a poisonous film that keeps its skin from dehydrating. |
| Stadium 2 | This POKéMON lives in cold water. It will leave the water to search for food when it gets cold outside. |
