Generation 1 · Pokédex profile
Poison Gas Pokémon
Pokédex entry
By diluting its toxic gases with a special process, the highest grade of perfume can be extracted. To Weezing, gases emanating from garbage are the ultimate feast.
Battle data
Pokédex entry
Long ago, when droves of factories fouled the air with pollution, it changed into this form for some reason. It consumes air pollutant particles, expelling clean air.
Battle data
Conditional evolutions can require additional game-specific prerequisites beyond the displayed method.
| Method | Location | Level | Evidence |
|---|---|---|---|
| Grass / ground | Pokemon Mansion 1f | Lv. 32 | Source-indexed, not individually verified |
| Grass / ground | Pokemon Mansion 2f | Lv. 32 | Source-indexed, not individually verified |
| Grass / ground | Pokemon Mansion 3f | Lv. 32 | Source-indexed, not individually verified |
| Grass / ground | Pokemon Mansion B1f | Lv. 34 | Source-indexed, not individually verified |
| Grass (rare)Form: Weezing Galar | Pokemon Tower 5f | Lv. 15 | 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.