Generation 1 · Pokédex profile
Mouse Pokémon
Pokédex entry
When it curls up in a ball, it can make any attack bounce off harmlessly. Its hide has turned tough and solid as a result of living in the desert.
Battle data
Pokédex entry
Life on mountains covered with deep snow has granted this Pokémon a body of ice that's as hard as steel. Predators go after its soft belly.
Battle data
Conditional evolutions can require additional game-specific prerequisites beyond the displayed method.
| Method | Location | Level | Evidence |
|---|---|---|---|
| Grass / ground | Mirage Tower 1f | Lv. 20–24 | Source-indexed, not individually verified |
| Grass / ground | Mirage Tower 2f | Lv. 20–24 | Source-indexed, not individually verified |
| Grass / ground | Mirage Tower 3f | Lv. 20–24 | Source-indexed, not individually verified |
| Grass / ground | Mirage Tower 4f | Lv. 20–24 | Source-indexed, not individually verified |
| 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 111 | Lv. 19–21 | Source-indexed, not individually verified |
| Grass / ground | Route 23 | Lv. 32–34 | Source-indexed, not individually verified |
| Grass / ground | Route 4 | Lv. 6–12 | 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 Low Left | Lv. 19–26 | Source-indexed, not individually verified |
| Grass / ground | Union Cave 1f | Lv. 8 | Source-indexed, not individually verified |
| Grass (rare)Form: Sandshrew Alola | Seafoam Islands B1f | Lv. 29 | 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.