Kanto

HeartGold HeartGold SoulSilver SoulSilver FireRed FireRed LeafGreen LeafGreen Yellow Yellow Red Red Blue Blue
Walking in tall grass or a cave
Pokémon Mansion
1F
5%
L32
1%
L39
4%
L37
Pokémon Mansion
2F
5%
L32
5%
L35–38
1%
L37
4%
L39
Pokémon Mansion
3F
5%
L32
5%
L38–41
1%
L42
15%
L38–40
Pokémon Mansion
B1F
5%
L34
10%
L41
1%
L42
10%
L40
Power Plant
5%
L33–37
Route 16
5%
L30
5%
L30
Route 17
5%
L32
At night
+10%
L30
5%
L32
At night
+10%
L30
Route 18
5%
L30
At night
+10%
L29
5%
L30
At night
+10%
L29
HeartGold HeartGold SoulSilver SoulSilver FireRed FireRed LeafGreen LeafGreen Yellow Yellow Red Red Blue Blue
Surfing
Celadon City
10%
L15
10%
L15

Unova

Black 2 Black 2 White 2 White 2 Black Black White White
Walking in tall grass or a cave
Route 9
5%
L40
5%
L40
Black 2 Black 2 White 2 White 2 Black Black White White
Walking in dark grass
Route 9
5%
L44
5%
L44
Black 2 Black 2 White 2 White 2 Black Black White White
Fishing in dark spots
Castelia Sewers
20%
L50–70
20%
L50–70
Castelia Sewers
unknown area 38
20%
L70
20%
L70
Black 2 Black 2 White 2 White 2 Black Black White White
Surfing in dark spots
Castelia Sewers
5%
L5–20
5%
L5–20
Castelia Sewers
unknown area 38
5%
L5–20
5%
L5–20