HeartGold Generations areas

Pallet Town

Surfing

PokémonWhenLevelChance
TentacoolAny time30–3590%
TentacruelAny time3510%

Old Rod

PokémonWhenLevelChance
MagikarpAny time1095%
TentacoolAny time105%

Good Rod

PokémonWhenLevelChance
TentacoolAny time2040%
MagikarpAny time2040%
ChinchouAny time2016%
ShellderAny time204%

Super Rod

PokémonWhenLevelChance
ShellderAny time4040%
ChinchouAny time4040%
TentacruelAny time4016%
LanturnAny time404%