| Black | Its cell composition is similar to water molecules. As a result, it can melt away into water. |
| White | Its cell composition is similar to water molecules. As a result, it can melt away into water. |
| Red/Blue | Lives close to water. Its long tail is ridged with a fin which is often mistaken for a mermaid's. |
| Yellow | Its cell structure is similar to water molecules. It will melt away and become invisible in water. |
| Gold | When VAPOREON's fins begin to vibrate, it is a sign that rain will come within a few hours. |
| Silver | It prefers beautiful shores. With cells similar to water molecules, it could melt in water. |
| Crystal | As it uses the fins on the tip of its tail to swim, it blends with the water perfectly. |
| Ruby | VAPOREON underwent a spontaneous mutation and grew fins and gills that allow it to live underwater. This POKéMON has the ability to freely control water. |
| Sapphire | VAPOREON underwent a spontaneous mutation and grew fins and gills that allow it to live underwater. This POKéMON has the ability to freely control water. |
| Emerald | VAPOREON underwent a spontaneous mutation and grew fins and gills that allow them to live underwater. They have the ability to freely control water. |
| Fire Red | Its body's cellular structure is similar to the molecular composition of water. It can melt invisibly in water. |
| Leaf Green | Lives close to water. Its long tail is ridged with a fin which is often mistaken for a mermaid's. |
| Diamond | It has evolved to be suitable for an aquatic life. It can invisibly melt away into water. |
| Pearl | It has evolved to be suitable for an aquatic life. It can invisibly melt away into water. |
| Platinum | Its cell composition is similar to water molecules. As a result, it can melt away into water. |
| Heart Gold | When VAPOREON's fins begin to vibrate, it is a sign that rain will come within a few hours. |
| Soul Silver | It prefers beautiful shores. With cells similar to water molecules, it could melt in water. |