« 11: Metapod 13: Weedle » Butterfree
12: Butterfree

Kanto

HeartGold HeartGold SoulSilver SoulSilver Crystal Crystal Gold Gold Silver Silver
Walking in tall grass or a cave
Route 2
north, towards Pewter City
In the morning
+10%
L7–8
During the day
+10%
L7–8
Route 2
south, towards Viridian City
In the morning
+10%
L7–8
In the morning
+10%
L7
During the day
+10%
L7
In the morning
+10%
L7
Route 24
In the morning
+5%
L14
During the day
+5%
L14
Route 25
In the morning
+5%
L14
During the day
+5%
L14
Viridian Forest
In the morning
+10%
L7

Unova

Black 2 Black 2 White 2 White 2 Black Black White White
Walking in rustling grass
Route 12
5%
L50