Onix in HeartGold

Image	Back

Level	Movename
Start	Tackle
Start	Bind
Start	Harden
Start	Mud Sport
6	Screech
9	Rock Throw
14	Rage
17	Rock Tomb
22	Sandstorm
25	Slam
30	Rock Polish
33	Dragonbreath
38	Curse
41	Iron Tail
46	Sand Tomb
49	Double-Edge
54	Stone Edge

Learned by breeding:

Move	Type	Contests
Flail
Defense Curl
Rock Blast
Rock Slide
Rollout
Explosion

Learned by TM:

TM	Move	Type	Contests
TM05	Roar
TM06	Toxic
TM10	Hidden Power
TM11	Sunny Day
TM12	Taunt
TM17	Protect
TM21	Frustration
TM26	Earthquake
TM27	Return
TM28	Dig
TM32	Double Team
TM37	Sandstorm
TM39	Rock Tomb
TM41	Torment
TM42	Facade
TM44	Rest
TM45	Attract
TM64	Explosion
TM66	Payback
TM69	Rock Polish
TM74	Gyro Ball
TM77	Psych Up
TM80	Rock Slide
TM87	Swagger
TM90	Substitute
TM91	Flash Cannon
TM94	Rock Smash
HM04	Strength
MT	Block
MT	Dragon Pulse
MT	Earth Power
MT	Iron Head
MT	Sleep Talk
MT	Snore
MT	Stealth Rock

Grass or cave interior

Through other methods

PokéWalker