Kanto

FireRed FireRed LeafGreen LeafGreen
Walking in tall grass or a cave
Icefall Cave
1F
5%
L30
Icefall Cave
B1F
5%
L30

Johto

HeartGold HeartGold SoulSilver SoulSilver Crystal Crystal Gold Gold Silver Silver
Walking in tall grass or a cave
Ice Path
1F
Radio off
+20%
L22
At night
+40%
L21–23
In the morning
+20%
L22
During the day
+20%
L22
At night
+20%
L22
Ice Path
B1F
Radio off
+20%
L22
At night
+40%
L22–24
In the morning
+20%
L22
During the day
+20%
L22
At night
+20%
L22
Ice Path
B2F
Radio off
+20%
L23
At night
+40%
L23–25
In the morning
+20%
L23
During the day
+20%
L23
At night
+20%
L23
Ice Path
B3F
Radio off
+20%
L23
At night
+40%
L24–26
In the morning
+20%
L24
During the day
+20%
L24
At night
+20%
L24

Sinnoh

Platinum Platinum Diamond Diamond Pearl Pearl
Walking in tall grass or a cave
Route 216
During a swarm
+40%
L32
During a swarm
+40%
L32
Route 217
During a swarm
+40%
L32–33

Unova

Black 2 Black 2 White 2 White 2 Black Black White White
Walking in tall grass or a cave
Giant Chasm
5%
L47
5%
L47
10%
L48
10%
L48
Giant Chasm
forest
5%
L44
5%
L44
Giant Chasm
forest cave
5%
L44
5%
L44
10%
L58
10%
L58
Giant Chasm
outside
5%
L44
5%
L44
Route 22
5%
L39
5%
L39
Black 2 Black 2 White 2 White 2 Black Black White White
Walking in dark grass
Giant Chasm
forest
5%
L49
5%
L49
Giant Chasm
forest cave
5%
L49
5%
L49
Giant Chasm
outside
5%
L49
5%
L49
Route 22
5%
L44
5%
L44

Kalos

X X Y Y
Walking on rough terrain
Route 17
40%
L38–40
40%
L38–40