HeartGold Generations areas

Union Cave

Leads to Route 32, Route 33, Ruins of Alph

Grass

PokémonWhenLevelChance
RaticateAny time2230%
ZubatAny time2230%
GolbatAny time2220%
RhyhornMorning, Day6–820%
ShellosMorning, Day6–820%
DwebbleMorning, Day5–720%
CarbinkNight6–820%
ImpidimpNight6–820%
ParasNight5–710%
GeodudeAny time2110%
CuboneNight4–810%
WhismurNight5–710%
NumelMorning, Day6–810%
DrifloonNight6–810%
RioluMorning, Day6–810%
InkayNight6–810%
RattataAny time205%
OnixAny time6–235%
ScytherNight6–95%
ThrohNight6–95%
SawkMorning, Day6–95%
FerroseedMorning, Day4–85%
MienfooMorning, Day4–85%

Surfing

PokémonWhenLevelChance
TentacoolAny time10–2060%
WooperAny time10–2060%
QuagsireAny time10–2540%
TentacruelAny time15–2510%

Old Rod

PokémonWhenLevelChance
MagikarpAny time1095%
KrabbyAny time105%
GoldeenAny time105%
FrillishAny time105%

Good Rod

PokémonWhenLevelChance
GoldeenAny time2060%
KrabbyAny time2056%
MagikarpAny time2040%
CorsolaAny time204%

Super Rod

PokémonWhenLevelChance
GoldeenAny time4080%
KrabbyAny time4056%
CorsolaAny time4040%
MagikarpAny time4016%
KinglerAny time404%
SeakingAny time404%

Items

EvioliteGreat BallPotionAwakeningMax Potion · hiddenRevive · hiddenX Accuracy · hiddenTM39X DefendX Defend · hiddenHP Up · hiddenElixirHyper PotionCarbos · hiddenEther · hidden

Trainers · 12

Ace Trainer Nick

#205
CharmanderLv 26Fire Fang, Smokescreen, Dragon Rage, Scary Face
SquirtleLv 26Withdraw, Water Gun, Bite, Curse
BulbasaurLv 26Leech Seed, Poison Powder, Sleep Powder, Razor Leaf

Hiker Daniel

#384
OnixLv 12

Firebreather Ray

#390
VulpixLv 13