HeartGold Generations areas

Mt. Moon

Leads to Route 3, Route 4

Grass

PokémonWhenLevelChance
Iron NeckAny time6–1030%
Iron MothAny time8–1230%
ReshiramAny time820%
IronThornsAny time6–820%

Surfing

PokémonWhenLevelChance
PoliwagAny time30–35100%
MagikarpAny time30–3540%

Old Rod

PokémonWhenLevelChance
MagikarpAny time10100%
PoliwagAny time1096%

Good Rod

PokémonWhenLevelChance
PoliwagAny time2096%
MagikarpAny time2080%

Super Rod

PokémonWhenLevelChance
PoliwagAny time40100%
MagikarpAny time404%

Items

Max Revive · hiddenRare Candy · hiddenRare Candy · hidden

Trainers · 3

Rival Silver

#285
SneaselLv 46Quick Attack, Icy Wind, Feint Attack, Shadow Claw
GolbatLv 47Poison Fang, Bite, Confuse Ray, Air Cutter
MagnetonLv 46Discharge, Supersonic, Thunder Wave, Magnet Bomb
GengarLv 48Mean Look, Curse, Shadow Ball, Confuse Ray
AlakazamLv 48Disable, Recover, Reflect, Psychic
MeganiumLv 50Petal Dance, Poison Powder, Synthesis, Light Screen

Rival Silver

#286
SneaselLv 46Quick Attack, Icy Wind, Feint Attack, Shadow Claw
GolbatLv 47Poison Fang, Bite, Confuse Ray, Air Cutter
MagnetonLv 46Discharge, Supersonic, Thunder Wave, Magnet Bomb
GengarLv 48Mean Look, Curse, Shadow Ball, Confuse Ray
AlakazamLv 48Disable, Recover, Reflect, Psychic
TyphlosionLv 50Flamethrower, Quick Attack, Flame Wheel, Swift

Rival Silver

#287
SneaselLv 46Quick Attack, Icy Wind, Feint Attack, Shadow Claw
GolbatLv 47Poison Fang, Bite, Confuse Ray, Air Cutter
MagnetonLv 46Discharge, Supersonic, Thunder Wave, Magnet Bomb
GengarLv 48Mean Look, Curse, Shadow Ball, Confuse Ray
AlakazamLv 48Disable, Recover, Reflect, Psychic
FeraligatrLv 50Waterfall, Ice Fang, Crunch, Slash