Breakable rock

Breakable rocks are a type of obstacle appearing in many core series games, commonly found on rugged routes and in caves. To get past them, the must use the help of a to break them. They appear in Generations , , , and , and , in which they can be broken using the field move , and in , in which they can be broken using the Ride Pokémon Tauros Charge and Sharpedo Jet. In , they can be broken by throwing a Pokémon at them.
In regions other than Sinnoh, it is possible for the player to find something after breaking a breakable rock. In Generations II and III, there is a chance of a wild Pokémon appearing. In and in Generation VI, there is a chance of either a wild Pokémon or an item appearing. In Pokémon Sun, Moon, Ultra Sun, and Ultra Moon, there is a chance of an item appearing.
In only, the player can also come across cracked walls in and around ruined buildings. These, like breakable rocks, block off certain areas and can be broken using Rock Smash. However, they do not leave behind any items or Pokémon upon being destroyed.
==Generation II==
When a rock is smashed, there is a 60% chance that nothing will happen afterwards and a 40% chance that a Pokémon will appear.
Location 	Pokémon
Dark Cave 	
 	
Cianwood City 	
Burned Tower 	—
Ice Path 	—
Mt. Moon Square	—
==Generation III==
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When a rock is smashed, there is a 1/9 chance of encountering a Pokémon (5/36 in Safari Zone). This chance can be modified by a bicycle, White Flute, Black Flute, or Cleanse Tag.
Location 	Pokémon	Required
Granite Cave 	 	
 	 	
 	 	
Mirage Tower 	— 	
 	— 	
Rusturf Tunnel 	— 	
Seafloor Cavern 	— 	
Trick House (puzzle 3)	— 	
(Area 4) 	 	
(Area 6) 	 	
 	 	
======
Location 	Pokémon
Kindle Road 	
Mt. Ember 	
Rock Tunnel 	
Sevault Canyon 	
Cerulean Cave 	
Mt. Ember (B3F)	
 	—
==Generation IV==
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Location 	Required
Oreburgh Gate	
Ravaged Path 	
Wayward Cave 	
Mt. Coronet 	
 	
 	
 	
 	
 	
 	
 	
 	
======
When a rock is smashed, the game generates a random number from 0 to 99. If the generated number is lower than the location's first %, the game will generate an encounter with a wild Pokémon from the encounter table. If this fails, or there are no wild encounters in that location, it will generate a random number from 0 to 99 for an item instead using the second %; if that check fails as well, smashing the rock yields nothing.
There are certain factors that influence the number generated by the game when it comes to the itemshttps://github.com/pret/pokeheartgold/blob/master/src/field/overlay_01_rock_smash_item.c#L149: 
*If the move is performed by a walking Pokémon, or one that has , or , the odds are increased by a flat 5%; this can stack.
*If the Pokémon has or , the game will instead pick the item below in the game's list (unless it chose the 5% item), effectively making it so that breaking the rock will never yield the 25% item.
Location 	RatesPokémon/Item	Pokémon	Items	Required	
Violet City 	—/50% 	— 	(25%)
 (20%)
 (10%)
 (10%)
 (10%)
 (10%)
 (10%)
 (5%)	 	
Tohjo Falls 	—/15% 	— 	(25%)
 (20%)
 (10%)
 (10%)
 (10%)
 (10%)
 (10%)
 (5%)	 	
 	—/10% 	— 	(25%)
 (20%)
 (10%)
 (10%)
 (10%)
 (10%)
 (10%)
 (5%)	 	
Mt. Silver Cave 	—/25% 	— 	(25%)
 (20%)
 (10%)
 (10%)
 (10%)
 (10%)
 (10%)
 (5%)	 	
Dark Cave 	50%/50% 	 	(25%)
 (20%)
 (10%)
 (10%)
 (10%)
 (10%)
 (10%)
 (5%)	 	
Cianwood City 	30%/20% 	 	(25%)
 (20%)
 (10%)
 (10%)
 (10%)
 (10%)
 (10%)
 (5%)	 	
 	40%/10% 	 	(25%)
 (20%)
 (10%)
 (10%)
 (10%)
 (10%)
 (10%)
 (5%)	 	
Cerulean Cave (B1F)	5%/30% 	 	(25%)
 (20%)
 (10%)
 (10%)
 (10%)
 (10%)
 (10%)
 (5%)	 	
Cerulean Cave (1F) 	5%/25% 	 	(25%)
 (20%)
 (10%)
 (10%)
 (10%)
 (10%)
 (10%)
 (5%)	 	
Cerulean Cave (2F) 	—/25% 	— 	(25%)
 (20%)
 (10%)
 (10%)
 (10%)
 (10%)
 (10%)
 (5%)	 	
Vermilion City 	40%/25% 	 	(25%)
 (20%)
 (10%)
 (10%)
 (10%)
 (10%)
 (10%)
 (5%)	 	
Rock Tunnel 	20%/30% 	 	(25%)
 (20%)
 (10%)
 (10%)
 (10%)
 (10%)
 (10%)
 (5%)	 	
 	30%/20% 	 	(25%)
 (20%)
 (10%)
 (10%)
 (10%)
 (10%)
 (10%)
 (5%)	 	
Ruins of Alph 	20%/30% 	 	
{| 	 	
(25%) 	(25%) 	 	 	 	
(20%) 	(20%) 	 	 	 	
(10%) 	(10%) 	 	 	 	
(10%) 	(10%) 	 	 	 	
(10%) 	(10%) 	 	 	 	
(10%) 	(10%) 	 	 	 	
(10%) 	(10%) 	 	 	 	
(5%) 	(5%) 	 	 	 	
==Generation V==
Rock Smash is not a field move, and there are no breakable rocks like in other games. In , however, the player can help clear a section of boulders in Clay Tunnel if a Pokémon in their party knows Rock Smash.
==Generation VI==
When a rock is smashed, there is an even chance that: nothing will happen afterwards, a Pokémon will appear, or an item will appear.
======
Location 	Pokémon 	Items		
Ambrette Town 	 	 		
 	 	 		
 	 	 		
Azure Bay 	 	 		
Cyllage City 	 	 		
 	 	 		
 	 	 		
Terminus Cave 	 	 		
 	 	 		
Glittering Cave 	 	
{| 		
 	 	 		
Pre–Hall of Fame: 	Pre–Hall of Fame: 	 		
 	 	 		
 	 	 		
Post–Hall of Fame:	Post–Hall of Fame:	 		
 	 	 		
 	 	 		
 	 	 		
 	 	 		
 	 	 		
 	 	 		
====Cracked walls====
Location
Lost Hotel
======
Location 	Pokémon	Items	Required	
Rusturf Tunnel 	 	 	 	
 	 	 	 	
 	 	 	 	
Granite Cave 	 	 	 	
Lilycove City 	 	 	 	
Shoal Cave 	 	 	 	
Seafloor Cavern 	 	 	 	
Trick House (puzzle 2)	— 	— 	 	
Mirage Caves 	 	
{| style="margin: auto;"	 	
 	 	
{| style="margin: auto;"	 	
 	 	
{| style="margin: auto;"	 	
 	 	
{| style="margin: auto;"	 	
 	 	 	 	
==Generation VII==
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Breakable rocks can appear both on land and in the water. On land, these rocks can be broken by the Poké Ride Tauros Charge; in the water, they can be broken by the Poké Ride Sharpedo Jet.
When these rocks are broken, occasionally a sparkling item will be left the aftermath, making a noise while the player is near it until they pick it up.
Location 	Games	Items
Iki Town 	 	—
Wela Volcano Park 	 	—
 	 	
 	 	
 	 	
Melemele Sea 	 	
Lush Jungle 	 	
 	 	
Exeggutor Island 	 	
 	 	
 	 	
Vast Poni Canyon 	 	
Poni Plains 	 	
Resolution Cave 	 	
Poni Coast 	 	
Poni Breaker Coast	 	
 	 	
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Breakable rocks appear on Mahalo Trail. The player cannot obtain items from breaking them.
==Generation VIII==
======
======
There are several locations across Hisui that have large breakable rock walls. The walls, once destroyed, disappear permanently. The player will always obtain items from breaking these rock walls.
Location 	Items
Oreburrow Tunnel	Iron Chunk ×3
Golden Lowlands 	Iron Chunk ×3
Gapejaw Bog 	Iron Chunk ×3
Glacier Terrace 	Iron Chunk ×3
==Gallery==
===Rocks===
					
===Breaking rocks===
==Notes==
==References==
Category:Obstacles
Category:Methods of obtaining Pokémon
it:Rocce frantumabili
ja:こわせそうないわ
zh:岩石（地形）#可以被粉碎的岩石