| Pokedex Entries: |
| Red | It accumulates negative ions in the atmosphere to blast out 10,000-volt lightning bolts. |
| Blue |
| Yellow | A sensitive Pokémon that easily becomes sad or angry. Every time its mood changes, it charges power. |
| Gold | It concentrates the weak electric charges emitted by its cells and launches wicked lightning bolts. |
| Silver | Every hair on its body starts to stand sharply on end if it becomes charged with electricity. |
| Crystal | The negatively charged ions generated in its fur create a constant sparking noise. |
| Ruby | JOLTEON's cells generate a low level of electricity. This power is amplified by the static electricity of its fur, enabling the POKéMON to drop thunderbolts. The bristling fur is made of electrically charged needles. |
| Sapphire |
| Emerald | Its cells generate weak power that is amplified by its fur's static electricity to drop thunderbolts. The bristling fur is made of electrically charged needles. |
| FireRed | If it is angered or startled, the fur all over its body bristles like sharp needles that pierce foes. |
| LeafGreen | It accumulates negative ions in the atmosphere to blast out 10,000-volt lightning bolts. |
| Diamond | It controls 10,000-volt power and can raise all the fur on its body as if it were sharp needles. |
| Pearl |
| Stadium 1 | Its weapons are its 10,000-volt electric attacks and its spiky fur. Its sharp hair can pierce enemies when it bristles. |
| Stadium 2 | It concentrates the weak electric charges emitted by its cells and launches wicked lightning bolts. |
| TCG | Dark Jolteon: A dangerous Pokémon when angered. It likes to playfully shock people with the electricity it stores within its body. |
| Light Jolteon: It can collect the ambient electrical energy in its cells and expel it in massive bursts. |
