Kanto

HeartGold HeartGold SoulSilver SoulSilver
Walking in tall grass or a cave
Seafoam Islands
B4F
2%
L40
Radio off
+10%
L38
2%
L40
Radio off
+10%
L38

Johto

HeartGold HeartGold SoulSilver SoulSilver
Walking in tall grass or a cave
Ice Path
1F
5%
L22
During the day
+5%
L22
5%
L22
During the day
+5%
L22
Ice Path
B1F
5%
L22
During the day
+5%
L22
5%
L22
During the day
+5%
L22
Ice Path
B2F
5%
L23
During the day
+5%
L23
5%
L23
During the day
+5%
L23
Ice Path
B3F
5%
L23
During the day
+5%
L23
5%
L23
During the day
+5%
L23

Sinnoh

Platinum Platinum Diamond Diamond Pearl Pearl
Walking in tall grass or a cave
Snowpoint Temple
B1F
10%
L47–49
Snowpoint Temple
B2F
10%
L48–50
Snowpoint Temple
B3F
10%
L48–50
Snowpoint Temple
B4F
10%
L49–51
Snowpoint Temple
B5F
10%
L49–51

Unova

Black 2 Black 2 White 2 White 2 Black Black White White
Walking in tall grass or a cave
Giant Chasm
10%
L48–50
10%
L48–50
Giant Chasm
forest cave
10%
L58–60
10%
L58–60

Kalos

X X Y Y
Walking in tall grass or a cave
Frost Cavern
Unknown Area 314
20%
L39–40
20%
L39–40
Frost Cavern
Unknown Area 315
20%
L39–40
20%
L39–40
Frost Cavern
Unknown Area 316
20%
L39–40
20%
L39–40
Frost Cavern
Unknown Area 317
20%
L39–40
20%
L39–40