How to Beat the First Kanto Gym in FireRed and LeafGreen

Beating the first gym in Kanto, which is Pewter City's gym, can be challenging if you're not well-prepared. Here are some tips on how to beat the gym in FireRed and LeafGreen:

1. Choose your starter wisely: Choosing the right starter Pokemon can make a big difference in the early game. If you picked Charmander as your starter, you'll have a harder time against the first gym because Brock's Pokemon are Rock-types, which are strong against Fire-types. Squirtle and Bulbasaur are both strong choices for this gym because their types are strong against Rock-types.

2. Train your Pokemon: Before facing the gym leader, make sure your Pokemon are at a high enough level to hold their own in battle. You'll want to aim for at least level 10 or higher for each of your Pokemon.

3. Catch a Mankey: In Route 22, you can find a Mankey, which is a Fighting-type Pokemon. Fighting-type moves are super effective against Rock-types, making Mankey a great addition to your team.

4. Use type advantages: Rock-type Pokemon are weak against Water, Grass, Fighting, and Steel-type moves. Use Pokemon with these types and their respective moves to take down Brock's Pokemon quickly.

5. Use potions and status moves: Don't be afraid to use potions to heal your Pokemon during the battle. You can also use status moves like Growl or Tail Whip to weaken Brock's Pokemon before attacking.

6. Save your strongest Pokemon for last: Brock's last Pokemon is his strongest, so save your own strongest Pokemon for last. This way, you'll have a better chance of defeating it without losing any of your own Pokemon.

7. Use the gym trainers to train: Before facing the gym leader, battle the gym trainers to level up your Pokemon and earn some money to buy more items. You can find the trainers in the gym by following the path to the left.

With these tips, you should be able to defeat the first gym in Kanto and earn your first badge! Good luck!