Generation 1 · Pokédex profile
Snake Pokémon
Pokédex entry
An Ekans curls itself up in a spiral while it rests. This position allows it to quickly respond to an enemy from any direction with a threat from its upraised head.
Battle data
Conditional evolutions can require additional game-specific prerequisites beyond the displayed method.
| Method | Location | Level | Evidence |
|---|---|---|---|
| Grass / ground | Route 10 | Lv. 11–17 | Source-indexed, not individually verified |
| Grass / ground | Route 11 | Lv. 12–15 | Source-indexed, not individually verified |
| Grass / ground | Route 23 | Lv. 32–34 | Source-indexed, not individually verified |
| Grass / ground | Route 32 | Lv. 6 | Source-indexed, not individually verified |
| Grass / ground | Route 33 | Lv. 8–9 | Source-indexed, not individually verified |
| Grass / ground | Route 4 | Lv. 6–12 | Source-indexed, not individually verified |
| Grass / ground | Route 42 | Lv. 20 | Source-indexed, not individually verified |
| Grass / ground | Route 8 | Lv. 17–19 | Source-indexed, not individually verified |
| Grass / ground | Route 9 | Lv. 11–17 | Source-indexed, not individually verified |
| Grass / ground | Safari Zone Top Left | Lv. 19–26 | Source-indexed, not individually verified |
| Rock Smash | Route 27 | Lv. 10 | Source-indexed, not individually verified |
| Rock Smash | Route 32 | Lv. 10 | Source-indexed, not individually verified |
| Rock Smash | Route 33 | Lv. 10 | Source-indexed, not individually verified |
Rare grass and Surfing encounters inherit the first native slot's level range. Supplemental fishing follows each rod's native slots. These ranges exclude Lure effects and randomizer replacements; eligibility restrictions still apply.
Data source: configured Grand Anthology Gen 1–9 species, forms and abilities. The website uses frame-cropped copies of the game's existing Pokémon sprites, which remain franchise/artist-owned assets. Some alternate forms use labeled default-form artwork when their individual sprite is unavailable. See acknowledgments for credits.