Kanto

HeartGold HeartGold SoulSilver SoulSilver
Walking in tall grass or a cave
Route 10
Sinnoh radio
+20%
L16
Sinnoh radio
+20%
L16
Route 13
Sinnoh radio
+20%
L25
Sinnoh radio
+20%
L25
Route 22
Sinnoh radio
+20%
L5
Sinnoh radio
+20%
L5
Route 24
Sinnoh radio
+20%
L9
Sinnoh radio
+20%
L9
Route 25
Sinnoh radio
+20%
L8
Sinnoh radio
+20%
L8
Route 26
Sinnoh radio
+20%
L32
Sinnoh radio
+20%
L32
Route 27
Sinnoh radio
+20%
L30
Sinnoh radio
+20%
L30
Route 28
Sinnoh radio
+20%
L40
Sinnoh radio
+20%
L40
Route 4
Sinnoh radio
+20%
L8
Sinnoh radio
+20%
L8
Route 6
Sinnoh radio
+20%
L14
Sinnoh radio
+20%
L14
Route 9
Sinnoh radio
+20%
L13
Sinnoh radio
+20%
L13
Sea Route 21
Sinnoh radio
+20%
L35
Sinnoh radio
+20%
L35

Johto

HeartGold HeartGold SoulSilver SoulSilver
Walking in tall grass or a cave
Mt. Silver
outside
Sinnoh radio
+20%
L42
Sinnoh radio
+20%
L42
Route 30
Sinnoh radio
+20%
L4
Sinnoh radio
+20%
L4
Route 31
Sinnoh radio
+20%
L3
Sinnoh radio
+20%
L3
Route 32
Sinnoh radio
+20%
L6
Sinnoh radio
+20%
L6
Route 34
Sinnoh radio
+20%
L12
Sinnoh radio
+20%
L12
Route 35
Sinnoh radio
+20%
L14
Sinnoh radio
+20%
L14
Route 42
Sinnoh radio
+20%
L14
Sinnoh radio
+20%
L15
Route 43
Sinnoh radio
+20%
L17
Sinnoh radio
+20%
L17
Route 44
Sinnoh radio
+20%
L22
Sinnoh radio
+20%
L22
Route 45
Sinnoh radio
+20%
L24
Sinnoh radio
+20%
L24
Route 47
Sinnoh radio
+20%
L31–32
Sinnoh radio
+20%
L31–32
Ruins of Alph
Outside
Sinnoh radio
+20%
L18
Sinnoh radio
+20%
L18
Unknown; all Rattata
Sinnoh radio
+40%
L20
Sinnoh radio
+40%
L20

Sinnoh

Platinum Platinum Diamond Diamond Pearl Pearl
Walking in tall grass or a cave
Eterna Forest
Not using PokéRadar
+10%
L12
Great Marsh
Area 1
1%
L26
1%
L26
Great Marsh
Area 2
1%
L26
1%
L26
Great Marsh
Area 3
1%
L24
1%
L24
Great Marsh
Area 4
1%
L24
1%
L24
Great Marsh
Area 5
1%
L22
No game in slot 2
+4%
L22
Ruby in slot 2
+4%
L22
Sapphire in slot 2
+4%
L22
Emerald in slot 2
+4%
L22
LeafGreen in slot 2
+4%
L22
1%
L22
No game in slot 2
+4%
L22
Ruby in slot 2
+4%
L22
Sapphire in slot 2
+4%
L22
Emerald in slot 2
+4%
L22
LeafGreen in slot 2
+4%
L22
Great Marsh
Area 6
1%
L22
1%
L22
Lake Verity
after Galactic intervention
35%
L2–4
Not using PokéRadar
+11%
L3–4
No game in slot 2
+4%
L4
Emerald in slot 2
+4%
L4
FireRed in slot 2
+4%
L4
LeafGreen in slot 2
+4%
L4
15%
L3–4
Not during a swarm
+20%
L2
At night
+10%
L3
Not using PokéRadar
+11%
L3–4
No game in slot 2
+4%
L4
15%
L3–4
Not during a swarm
+20%
L2
At night
+10%
L3
Not using PokéRadar
+11%
L3–4
No game in slot 2
+4%
L4
Lake Verity
before Galactic intervention
35%
L2–4
At night
+10%
L3
Not using PokéRadar
+11%
L3–4
No game in slot 2
+4%
L4
Emerald in slot 2
+4%
L4
FireRed in slot 2
+4%
L4
LeafGreen in slot 2
+4%
L4
15%
L3–4
Not during a swarm
+20%
L2
At night
+10%
L3
Not using PokéRadar
+11%
L3–4
No game in slot 2
+4%
L4
15%
L3–4
Not during a swarm
+20%
L2
At night
+10%
L3
Not using PokéRadar
+11%
L3–4
No game in slot 2
+4%
L4
Route 201
5%
L3
Not during a swarm
+20%
L2
During the day
+10%
L3
At night
+10%
L3
Not using PokéRadar
+11%
L2–3
No game in slot 2
+4%
L2
Ruby in slot 2
+4%
L2
Sapphire in slot 2
+4%
L2
Emerald in slot 2
+4%
L2
LeafGreen in slot 2
+4%
L2
15%
L3
Not during a swarm
+20%
L2
At night
+10%
L3
Not using PokéRadar
+11%
L2–3
No game in slot 2
+4%
L2
15%
L3
Not during a swarm
+20%
L2
At night
+10%
L3
Not using PokéRadar
+11%
L2–3
No game in slot 2
+4%
L2
Route 202
5%
L4
Not during a swarm
+20%
L3
During the day
+10%
L3
At night
+10%
L3
Not using PokéRadar
+11%
L2–3
No game in slot 2
+4%
L2
Ruby in slot 2
+4%
L2
Sapphire in slot 2
+4%
L2
Emerald in slot 2
+4%
L2
LeafGreen in slot 2
+4%
L2
5%
L4
Not during a swarm
+20%
L3
Not using PokéRadar
+1%
L2
No game in slot 2
+4%
L2
Ruby in slot 2
+4%
L2
Sapphire in slot 2
+4%
L2
Emerald in slot 2
+4%
L2
LeafGreen in slot 2
+4%
L2
5%
L4
Not during a swarm
+20%
L3
Not using PokéRadar
+1%
L2
No game in slot 2
+4%
L2
Ruby in slot 2
+4%
L2
Sapphire in slot 2
+4%
L2
Emerald in slot 2
+4%
L2
LeafGreen in slot 2
+4%
L2
Route 203
11%
L5–7
During the day
+10%
L4
No game in slot 2
+4%
L6
FireRed in slot 2
+4%
L6
LeafGreen in slot 2
+4%
L6
Not using PokéRadar
+11%
L4–6
No game in slot 2
+4%
L5
FireRed in slot 2
+4%
L5
LeafGreen in slot 2
+4%
L5
Not using PokéRadar
+11%
L4–6
No game in slot 2
+4%
L5
FireRed in slot 2
+4%
L5
LeafGreen in slot 2
+4%
L5
Route 204
north, towards Floaroma Town
20%
L9
Not using PokéRadar
+1%
L11
No game in slot 2
+4%
L10
20%
L6
Not using PokéRadar
+1%
L8
No game in slot 2
+4%
L8
FireRed in slot 2
+4%
L8
LeafGreen in slot 2
+4%
L8
20%
L6
Not using PokéRadar
+1%
L8
No game in slot 2
+4%
L8
FireRed in slot 2
+4%
L8
LeafGreen in slot 2
+4%
L8
Route 204
south, towards Jubilife City
21%
L4–6
No game in slot 2
+4%
L5
20%
L4
Not using PokéRadar
+1%
L6
No game in slot 2
+4%
L6
20%
L4
Not using PokéRadar
+1%
L6
No game in slot 2
+4%
L6
Route 205
east, towards Eterna City
30%
L12–14
30%
L10–11
Not using PokéRadar
+11%
L11–12
No game in slot 2
+4%
L12
Ruby in slot 2
+4%
L12
Emerald in slot 2
+4%
L12
FireRed in slot 2
+4%
L12
LeafGreen in slot 2
+4%
L12
30%
L10–11
Not using PokéRadar
+11%
L11–12
No game in slot 2
+4%
L12
Ruby in slot 2
+4%
L12
Emerald in slot 2
+4%
L12
FireRed in slot 2
+4%
L12
LeafGreen in slot 2
+4%
L12
Route 205
south, towards Floaroma Town
Not using PokéRadar
+10%
L10
Not using PokéRadar
+10%
L9
Not using PokéRadar
+10%
L9
Route 208
Not during a swarm
+20%
L18
Not during a swarm
+20%
L16
Not during a swarm
+20%
L16
Route 211
west, towards Eterna City
20%
L14
20%
L13
In the morning
+10%
L14
During the day
+10%
L14
Not using PokéRadar
+1%
L12
No game in slot 2
+4%
L12
Ruby in slot 2
+4%
L12
Sapphire in slot 2
+4%
L12
FireRed in slot 2
+4%
L12
LeafGreen in slot 2
+4%
L12
20%
L13
In the morning
+10%
L14
During the day
+10%
L14
Not using PokéRadar
+1%
L12
No game in slot 2
+4%
L12
Ruby in slot 2
+4%
L12
Sapphire in slot 2
+4%
L12
FireRed in slot 2
+4%
L12
LeafGreen in slot 2
+4%
L12
Valley Windworks
Not using PokéRadar
+10%
L8
Not using PokéRadar
+10%
L8

Kalos

X X Y Y
Walking in tall grass or a cave
Route 22
10%
L6
10%
L6
Route 3
20%
L3–4
20%
L3–4