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
Rock Tunnel
B1F
5%
L14
5%
L14
In the morning
+5%
L15
During the day
+5%
L15
5%
L14
5%
L14
Safari Zone
Area 1, east
4%
L25
4%
L25
4%
L25
4%
L25
Safari Zone
Area 2, north
15%
L28–33
Safari Zone
Area 3, west
1%
L28
1%
L28
1%
L28
1%
L28

Unova

Black 2 Black 2 White 2 White 2 Black Black White White
Walking in tall grass or a cave
Route 15
10%
L49
10%
L49
Black 2 Black 2 White 2 White 2 Black Black White White
Walking in dark grass
Route 15
10%
L59
10%
L59

Kalos

X X Y Y
Walking in tall grass or a cave
Glittering Cave
Unknown Area 303
5%
L17
5%
L17