Kanto

HeartGold HeartGold SoulSilver SoulSilver FireRed FireRed LeafGreen LeafGreen Crystal Crystal Gold Gold Silver Silver Yellow Yellow Red Red Blue Blue
Walking in tall grass or a cave
Route 3
10%
L6
10%
L6
10%
L3–7
10%
L3–7
In the morning
+10%
L6
During the day
+10%
L6
At night
+10%
L6
In the morning
+10%
L6
During the day
+10%
L6
At night
+10%
L6
10%
L3–7
10%
L3–7
Route 4
10%
L6
10%
L6
In the morning
+10%
L6
During the day
+10%
L6
At night
+10%
L6
In the morning
+10%
L6
During the day
+10%
L6
At night
+10%
L6
Route 5
In the morning
+5%
L14
During the day
+5%
L14
At night
+5%
L14
10%
L3–7
Route 6
In the morning
+5%
L12
During the day
+5%
L12
At night
+5%
L12
10%
L3–7
Route 7
In the morning
+5%
L18
During the day
+5%
L18
At night
+5%
L18
10%
L19–24
Route 8
In the morning
+5%
L16
During the day
+5%
L16
At night
+5%
L16
10%
L19–24

Johto

Crystal Crystal Gold Gold Silver Silver
Walking in tall grass or a cave
Route 34
In the morning
+5%
L12
During the day
+5%
L12
At night
+5%
L12
Route 35
Not during a swarm
In the morning
+5%
L12
Not during a swarm
During the day
+5%
L12
Not during a swarm
At night
+5%
L12
Route 46
In the morning
+5%
L3–5
During the day
+5%
L3–5
At night
+5%
L3–5
In the morning
+5%
L3–5
During the day
+5%
L3–5
At night
+5%
L3–5

Hoenn

Emerald Emerald Ruby Ruby Sapphire Sapphire
Walking in tall grass or a cave
Route 115
10%
L24–25
10%
L24–25
10%
L24–25

Unova

Black 2 Black 2 White 2 White 2 Black Black White White
Walking in tall grass or a cave
Dreamyard
10%
L57
10%
L57
Route 1
10%
L57
10%
L57
Route 14
20%
L48
20%
L48
Route 2
10%
L57
10%
L57
Black 2 Black 2 White 2 White 2 Black Black White White
Walking in dark grass
Dreamyard
10%
L65
10%
L65
Dreamyard
B1F
10%
L65
10%
L65
Route 1
10%
L65
10%
L65
Route 14
20%
L58
20%
L58

Kalos

X X Y Y
Walking in tall grass or a cave
Route 20
20%
L48–49
20%
L48–49
X X Y Y
Walking in yellow flowers
Pokémon Village
10%
L50
10%
L50
X X Y Y
Walking in purple flowers
Pokémon Village
20%
L48–49
20%
L48–49
X X Y Y
Walking in red flowers
Route 20
10%
L50
10%
L50