| 3 | Ruby | Wailmer's nostrils are located above its eyes. This playful Pokémon loves to startle people by forcefully snorting out seawater it stores inside its body out of its nostrils. |
| 3 | Sapphire | Wailmer can store water inside its body to transform itself into a ball for bouncing on the ground. By filling itself up with more water, this Pokémon can elevate the height of its bounces. |
| 3 | Emerald | While this Pokémon usually lives in the sea, it can survive on land, although not too long. It loses vitality if its body becomes dried out. |
| 3 | FireRed, LeafGreen | When it sucks in a large volume of seawater, it becomes like a big, bouncy ball. It eats a ton of food daily. |
| 4 | Diamond, Pearl, Platinum | On sunny days, it lands on beaches to bounce like a ball and play. It spouts water from its nose. |
| 4 | HeartGold, SoulSilver | It bounces playfully like a ball. The more seawater it swallows, the higher it bounces. |
| 5 | Black, White | On sunny days, it lands on beaches to bounce like a ball and play. It spouts water from its nose. |
| 5 | Black 2, White 2 | It eats one ton of food every day. It plays by shooting stored seawater out its blowholes with great force. |
| 6 | X | It bounces playfully like a ball. The more seawater it swallows, the higher it bounces. |
| 6 | Y | It eats one ton of food every day. It plays by shooting stored seawater out its blowholes with great force. |
| 6 | Omega Ruby | Wailmer's nostrils are located above its eyes. This playful Pokémon loves to startle people by forcefully snorting out seawater it stores inside its body out of its nostrils. |
| 6 | Alpha Sapphire | Wailmer can store water inside its body to transform itself into a ball for bouncing around on the ground. By filling itself up with more water, this Pokémon can elevate the height of its bounces. |
| 7 | Sun | It loves to startle people. It fills itself up with seawater and plays by bouncing around like a ball. |
| 7 | Moon | It shows off by spraying jets of seawater from the nostrils above its eyes. It eats a solid ton of Wishiwashi every day. |
| 7 | Ultra Sun | It swims along with its mouth open and swallows down seawater along with its food. It sprays excess water out of its nostrils. |
| 7 | Ultra Moon | Due to their memories of when they once lived on land, pods of them will, very rarely, wash up on shore. |
| 8 | Sword | It shows off by spraying jets of seawater from the nostrils above its eyes. It eats a solid ton of Wishiwashi every day. |
| 8 | Shield | When it sucks in a large volume of seawater, it becomes like a big, bouncy ball. It eats a ton of food daily. |
