* Use the Safari Zone. The Safari Zone is a special area that can be accessed from Fuchsia City. In the Safari Zone, you can use bait to lure Pokemon out of hiding, and then throw Safari Balls at them to catch them. Some of the rare Pokemon that can be found in the Safari Zone include Scyther, Pinsir, and Tauros.
* Use the Friend Safari. The Friend Safari is a feature that was introduced in Pokemon X and Y, but it can also be found in Pokemon Firered. To access the Friend Safari, you must first add friends to your Nintendo 3DS. Once you have added friends, you can visit their Friend Safaris and catch rare Pokemon that they have in their safaris.
* Use the Wonder Trade. The Wonder Trade is a feature that allows you to trade Pokemon with other players around the world. You can find the Wonder Trade in the Pokemon Center in any town or city. Simply put a Pokemon in your party that you are willing to trade, and then select the Wonder Trade option. You will then be randomly matched with another player, and you will trade Pokemon with each other. There is always a chance that you will receive a rare Pokemon through the Wonder Trade.
* Use a Master Ball. The Master Ball is a special item that can be used to catch any Pokemon without fail. Master Balls can be found in hidden areas throughout the game, or they can be purchased from the Celadon Department Store for 5000 coins.