Kanto

HeartGold HeartGold SoulSilver SoulSilver
Walking in tall grass or a cave
Route 3
During a swarm
+40%
L5

Hoenn

Emerald Emerald Ruby Ruby Sapphire Sapphire
Walking in tall grass or a cave
Route 110
15%
L12–13
15%
L12–13
15%
L12–13

Kalos

X X Y Y
Walking in tall grass or a cave
Route 5
10%
L10
10%
L10
X X Y Y
Walking in purple flowers
Route 5
10%
L10
10%
L10