Pokepedia
←
Onix, the Rock Snake Pokémon — Rock/Ground-type Pokémon official artwork
rockground
Onix
ID:#95Rock Snake Pokémon
Height
8.8m
Weight
210.0kg
Catch Rate
45
Exp
77
→
DiamondPearlPlatinumHeartGoldSoulSilver

Onix Pokémon HeartGold: Moves, Sprites & Locations

Everything you need to know about Onix in Pokémon HeartGold. On this page you'll find its Pokédex entry straight from the game, all sprite variants including shiny forms, the complete moveset of 71 moves grouped by learning method (level-up, TM/HM, egg, tutor), and every wild encounter location with levels, conditions, and catch rates.

Pokémon HeartGold
Kanto

Onix Pokemon HeartGold Pokedex Entry

This chain of immense stones resembles a giant serpent. Tremors shake the earth above as it burrows deep beneath the ground, feeding on boulders as it goes.

Pokemon HeartGold Onix Sprites

Onix front-facing sprite from Pokémon HeartGoldPrimary
Onix back-facing sprite from Pokémon HeartGoldReverse
Onix shiny front-facing sprite from Pokémon HeartGoldShiny
Onix shiny back-facing sprite from Pokémon HeartGoldShiny Reverse

Pokémon HeartGold Onix Moveset

Complete registry of moves learned by Onix via various methods in Pokémon HeartGold.

MoveTypeRequirement
BindnormalLv. 1
TacklenormalLv. 1
HardennormalLv. 1
Mud SportgroundLv. 1
ScreechnormalLv. 6
Rock ThrowrockLv. 9
RagenormalLv. 14
Rock TombrockLv. 17
SandstormrockLv. 22
SlamnormalLv. 25
Rock PolishrockLv. 30
Dragon BreathdragonLv. 33
CurseghostLv. 38
Iron TailsteelLv. 41
Sand TombgroundLv. 46
Double EdgenormalLv. 49
Stone EdgerockLv. 54

End of Move Database

Pokémon HeartGold Onix Locations

Onix can be caught in 11 locations across Pokémon HeartGold, including Mt Silver 1f, Mt Silver Mountainside, and Johto Route 47 Inside Cave. The most reliable spawn is at Mt Silver Mountainside, where you'll find it at Lv. 48 by walking through tall grass with a 20% encounter rate.

Union Cave 1f

2 encounters
  • walk
    Lv. 6
    4%Very Rare
  • walk
    Lv. 6
    1%Very Rare

Union Cave B1f

2 encounters
  • walk
    Lv. 8
    5%Rare
  • walk
    Lv. 8
    5%Rare

Union Cave B2f

2 encounters
  • walk
    Lv. 23
    4%Very Rare
  • walk
    Lv. 23
    1%Very Rare

Johto Route 47 Inside Cave

1 encounter
  • walk
    Lv. 20
    Radio off
    10%Uncommon

Mt Silver 1f

2 encounters
  • walk
    Lv. 42
    20%Frequent
  • walk
    Lv. 42
    Radio off
    10%Uncommon

Mt Silver Mountainside

2 encounters
  • walk
    Lv. 48
    20%Frequent
  • walk
    Lv. 48
    Radio off
    10%Uncommon

Rock Tunnel B1f

2 encounters
  • walk
    Lv. 16
    Radio off
    10%Uncommon
  • walk
    Lv. 16
    Radio off
    10%Uncommon

Kanto Victory Road 1 1f

4 encounters
  • walk
    Lv. 34
    5%Rare
  • walk
    Lv. 34
    5%Rare
  • walk
    Lv. 36
    4%Very Rare
  • walk
    Lv. 36
    1%Very Rare

Kanto Victory Road 1 2f

4 encounters
  • walk
    Lv. 34
    5%Rare
  • walk
    Lv. 34
    5%Rare
  • walk
    Lv. 36
    4%Very Rare
  • walk
    Lv. 36
    1%Very Rare

Kanto Victory Road 1 3f

4 encounters
  • walk
    Lv. 34
    5%Rare
  • walk
    Lv. 34
    5%Rare
  • walk
    Lv. 36
    4%Very Rare
  • walk
    Lv. 36
    1%Very Rare

Johto Safari Zone Zone Wasteland

7 encounters
  • walk
    Lv. 15
    Morning
    10%Uncommon
  • walk
    Lv. 15
    Night
    10%Uncommon
  • walk
    Lv. 15
    Day
    10%Uncommon
  • walk
    Lv. 16
    Day
    10%Uncommon
  • walk
    Lv. 16
    Morning
    10%Uncommon
  • walk
    Lv. 16
    Night
    10%Uncommon
  • walk
    Lv. 17
    Night
    10%Uncommon