Here's what they look like and their importance:
* Appearance: Large, gray-brown rocks with a rough, uneven surface. They often appear in clusters or as standalone boulders.
* Function: Rock Blocks are obstacles that need to be broken to progress in certain areas of the game. They are most commonly found in caves and mountains.
* Breaking them: You can break Rock Blocks using the move "Rock Smash". This move is learned by certain Pokémon like Machop, Rhyhorn, and Onix.
Important:
* Rock Blocks are not available for purchase in any shops.
* They are not items that can be picked up or used in battle.
* Their primary function is to block paths, creating challenges for players.
Let me know if you have any other questions about Pokémon HeartGold!