How to Get Gengar in FireRed

Step-by-Step Guide

1. 1

   Step 1: Defeat Team Rocket in Celadon City.

   This is available after you defeat Erika and earn your fourth badge.
   
   Defeating Giovanni and Team Rocket will give you the Silph Scope, which will allow you to see the Ghost Pokémon that inhabit the Pokémon Tower in Lavender City., Now that you have the Silph Scope, you can enter the Tower and not have to run from battles with Ghost-type Pokémon. , Once you have entered the tower, head north and then east until you see a staircase.
   
   Climb it to proceed to the next floor. , Head north, and you will find your rival Gary.
   
   You will have to battle him.
   
   Your rival’s team may vary depending on which starter Pokémon he chooses.
   
   Here are the possible combinations:
   Pidgeotto(LvL25), Kadabra(LvL20), Exeggcute(LvL22), Wartortle(LvL25), Growlithe(LvL23) Pidgeotto(LvL25), Kadabra(LvL20), Exeggcute(LvL23), Gyarados(LvL22), Charmeleon(LvL25) Pidgeotto(LvL25), Kadabra(LvL20), Ivysaur(LvL25), Gyarados(LvL23), Growlithe(LvL22) , Once you have beat Gary, head east where you will find another staircase.
   
   Climb it to proceed. , The third floor is the first floor where you will find wild Pokémon.
   
   Chances of encountering a Haunter on any given floor is about 1-15%; higher floors will yield better chances.
   
   You will have much more luck catching a Gastly, but the process of evolving it takes longer.
   
   An alternative to catching a Haunter is catching a Ghastly, which can then be evolved into a Haunter by levelling up to LvL25 and using a rare candy.
   
   Keep in mind that both Ghastly and Haunter are Ghost-type Pokémon, making them immune to Normal, Fighting, and Ground attacks.
   
   If you catch a Gastly, you will need to evolve it into a Haunter before proceeding. , Weaken the Haunter or Gastly and then start chucking Pokeballs at it.
   
   Gastlys are pretty easy to catch and shouldn't pose too many problems, but Haunters may take a few Pokeballs in order to capture it. , Once you have captured a Haunter or evolved your Gastly, head toward the nearest Pokémon Center and go to the 2nd floor.
   
   If this is your first time entering the 2nd floor, the NPC will give you a brief explanation of the linking system. , Proceed to the 3rd NPC and pick “Trade Center” and save your game.
   
   Remember, you must have someone to trade with via a GBA link cable or wireless network connection.
   
   Make sure your devices are connected before proceeding. , Choose either to be the leader of a group, or join a group.
   
   Start the trade and select “Ok.” You will be led into a room where you will see the other player.
   
   The other player will need to select the opposite option.
   
   For example, if you chose "Become Leader"
   
   the other player must choose "Join Group". , Sit on the chair and press “A” to begin the trade. , Once the trade is complete, the Haunter will immediately evolve into a Gengar.
   
   Have your friend/spare GBA send back your newly-evolved Gengar by repeating the trade process.
2. 2

   Step 2: Enter the Pokémon Tower.

3. 3

   Step 3: Climb the tower.

4. 4

   Step 4: Defeat Gary.

5. 5

   Step 5: Continue climbing the tower.

6. 6

   Step 6: Look for a Haunter.

7. 7

   Step 7: Catch the Pokemon.

8. 8

   Step 8: Get ready to trade.

9. 9

   Step 9: Start the trade process.

10. 10

    Step 10: Select your trade partner.

11. 11

    Step 11: Initiate the trade.

12. 12

    Step 12: Select your Haunter and trade it with your friend or spare GBA.

Detailed Guide

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