Brock appears in the games "Pokémon Red", "Blue", and "Yellow", and the "Red" and "Blue" remakes "FireRed" and "LeafGreen" as the gym leader of Pewter City. He gives out the Boulder Badge and uses Rock-type Pokémon. He also appears in "Gold", "Silver", and "Crystal" and the "Gold" and "Silver" remakes "HeartGold" and "SoulSilver" as a gym leader the player can face when they get to the Kanto region.