HeartGold Generations areas

Route 22

Leads to Route 26

Grass

PokémonWhenLevelChance
RaikouAny time3–430%
Ho-ohAny time3–730%
EnteiAny time3–520%
HeatranAny time3–520%

Surfing

PokémonWhenLevelChance
PoliwagAny time5–1090%
PoliwhirlAny time1010%

Old Rod

PokémonWhenLevelChance
MagikarpAny time1095%
PoliwagAny time105%

Good Rod

PokémonWhenLevelChance
PoliwagAny time2060%
MagikarpAny time2040%

Super Rod

PokémonWhenLevelChance
PoliwagAny time4084%
MagikarpAny time4016%