Viridian Forest
22 Pokémon can be caught at Viridian Forest in Kanto — highlighted on the map below.
Viridian Forest fills the middle of Route 2 between Viridian City and Pewter City, a woodland so dense that little sunlight penetrates and travelers routinely lose their way in its natural maze. The gloom suits the Bug-type Pokémon that thrive here, including Caterpie, Weedle, Metapod, and Kakuna, and the forest is also a rare home for wild Pikachu and under-leveled Pidgeotto. Bug Catchers gather from the neighboring cities to train, and signs warn visitors to stock up on Antidotes and Paralyze Heals before entering. In Generation II the forest is reduced to a tree maze absorbed into Route 2.
Pokémon at Viridian Forest
| Pokémon | Games | Method | Levels | Rarity |
|---|---|---|---|---|
 | BlueFireRedLeafGreen | Walking | 3-5 | Common |
| Yellow | Walking | 3-6 | Common |
 | Red | Walking | 4-6 | Common |
 | Blue | Walking | 4-6 | Common |
 | RedFireRedLeafGreen | Walking | 3-5 | Common |
| FireRed | Walking | 4-6 | Uncommon |
| YellowLeafGreen | Walking | 4-6 | Uncommon |
 | Yellow | Walking | 4-8 | Uncommon |
| Red | Walking | 3 | Rare |
| Blue | Walking | 4 | Rare |
| LeafGreen | Walking | 5 | Rare |
| Red | Walking | 4 | Rare |
| FireRed | Walking | 5 | Rare |
 | Yellow | Walking | 9 | Rare |
 | RedBlueFireRedLeafGreen | Walking | 3-5 | Rare |
| Blue | Walking | 3 | Rare |
 | SoulSilver | Walking | 7 | Morning |
 | HeartGoldSoulSilver | Walking | 3 | Morning |
 | HeartGold | Walking | 7 | Morning |
 | HeartGoldSoulSilver | Walking | 5 | Morning |
| HeartGold | Walking | 3 | Morning |
| SoulSilver | Walking | 3-5 | Morning |
 | HeartGoldSoulSilver | Walking | 3-5 | Morning |
| HeartGold | Walking | 3-5 | Morning |
 | HeartGoldSoulSilver | Walking | 5 | Morning |
| HeartGoldSoulSilver | Walking | 7 | Morning |
| HeartGoldSoulSilver | Walking | 3 | Morning |
| HeartGoldSoulSilver | Walking | 4-7 | Morning |
 | HeartGoldSoulSilver | Walking | 3 | Morning |
| SoulSilver | Walking | 3 | Morning |
 | HeartGold | Headbutt | 5-7 | Morning |
 | HeartGoldSoulSilver | Headbutt | 2-19 | Morning |
 | SoulSilver | Headbutt | 5-7 | Morning |
 | SoulSilver | Headbutt | 3-7 | Morning |
 | HeartGoldSoulSilver | Headbutt | 5-7 | Morning |
 | HeartGoldSoulSilver | Headbutt | 3-7 | Morning |
 | HeartGoldSoulSilver | Headbutt | 3-7 | Morning |
 | HeartGold | Headbutt | 3-7 | Morning |
| HeartGoldSoulSilver | Walking | 3-7 | Day |
| HeartGoldSoulSilver | Walking | 3-5 | Night |
| HeartGoldSoulSilver | Walking | 7 | Night |
| HeartGoldSoulSilver | Walking | 4 | Night |