fightingphysical

Rock Smash

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Power

Accuracy

100%

Target

Selected Pokemon

50% effect chance

Effect

Has a chance to lower the target’s Defense by one stage.

Inflicts regular damage. Has a chance to lower the target’s Defense by one stage.

"The user attacks with a punch. This may also lower the target's Defense stat."

Where to find it

Game-by-game pickup locations, plus wild Pokémon that may be holding the TM.

Machine by version

TM08taught in
Gold SilverCrystal
Generation I
- R B YS.S. Anne
Generation II
- G S CRoute 36 · Goldenrod Department Store *($ 1000)
Generation III
- R S EPrize for defeating Brawly
- FR LGSilph Co.
- ColoNot available
- XDArea 8 of Mt. Battle
Generation IV
- D P PtBattle Tower D P / Frontier Pt(48 BP)
- HG SSBattle Frontier(48 BP)
Generation V
- B WRoute 14
- B2 W2Striaton City Poké Mart($ 80000)
Generation VI
- X YSnowbelle City
- OR ASPrize for defeating Brawly
Generation VII
- S MKonikoni City($ 10,000)
- US UMRoyal Avenue
- P ESaffron City
Generation VIII
- Sw ShWyndon($ 50,000)
- BD SPBattle Tower · Grand Underground merchant(48 BP ×20 or 22 ×20 or 22 ×20 or 22 ×13 or 15 BD /10 or 13 SP ×10 or 13 BD /13 or 15 SP)
Generation IX
- S VSchedar Squad's Base · West Province (Area One) · TM Machine Only in The Teal Mask : Oni Mountain(800 LP Houndour Fang ×3)
TM94taught in
Black WhiteBlack 2 White 2X Y
Generation V
- B WPinwheel Forest
- B2 W2Virbank Complex
Generation VI
- X YAmbrette Town
- OR ASRoute 111
Generation VII
- S MPoni Breaker Coast
- US UMPoni Breaker Coast
Generation VIII
- Sw ShMotostoke (Upper Pokémon Center )($ 10,000)
- BD SPTeam Galactic HQ · Battle Tower · Grand Underground merchant(40 BP ×15 or 18 ×15 or 18 ×15 or 18 ×8 or 10 BD /5 or 8 SP ×5 or 8 BD /8 or 10 SP)
Generation IX
- S VGlaseado Mountain · East Province (Area Three) · North Province (Area Two) · TM Machine Only in The Teal Mask : Fellhorn Gorge Only in The Indigo Disk : Coastal Biome(8,000 LP Zorua Fur ×3 Impidimp Hair ×3 Spiritomb Fragment ×3)
- ZARestaurant Le Yeah (reward for completing Side Mission 060: " Full Course of Battles: Two Stars")
HM06taught in
Ruby SapphireEmeraldFirered LeafgreenDiamond PearlPlatinumHeartgold SoulsilverColosseumXdOmega Ruby Alpha SapphireBrilliant Diamond Shining Pearl
Generation II
- G S CTeam Rocket's Hideout
Generation III
- R S EMauville City
- FR LGEmber Spa
Generation IV
- D P PtOreburgh Gate
- HG SSRoute 36
Generation V
- B WUndella Town
- B2 W2Undella Town
Generation VI
- OR ASMauville City
TM04taught in
Legends Za
Generation I
- R B YRoute 4
Generation II
- G S CRoute 35
Generation III
- R S EPrize for defeating Tate and Liza
- FR LGPrize for defeating Sabrina
- ColoN/A
- XDArea 7 of Mt. Battle
Generation IV
- D P PtBattle Tower D P / Frontier Pt(48 BP)
- HG SSBattle Frontier(48 BP)
Generation V
- B WRelic Castle
- B2 W2Striaton City Poké Mart($ 80000)
Generation VI
- X YPrize for defeating Olympia
- OR ASPrize for defeating Tate and Liza
Generation VII
- S MSeafolk Village($ 10,000)
- US UMSeafolk Village($ 10,000)
- P EPokémon Tower
Generation VIII
- Sw ShWyndon($ 50,000)
- BD SPBattle Tower · Grand Underground Rocky Cave · Grand Underground merchant(48 BP ×20 or 22 ×20 or 22 ×20 or 22 ×13 or 15 BD /10 or 13 SP ×10 or 13 BD /13 or 15 SP)
Generation IX
- S VSouth Province (Area Two) · South Province (Area Three) · West Province (Area One) · West Province (Area Three) · TM Machine Crafting Recipe: Defeat Team Star Boss Giacomo(800 LP Fletchling Feather ×3 Oricorio Feather ×3)
- ZAReward for attaining research level 2

Introduced in Generation II· Learned by 507 Pokémon