You have to beat the 2nd gym.
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location of Marshbadge pokemon fire Red
The basement.
revive a pokemon from a fossil and beat the fire gym leader Actually, you need to get the key from the Pokemon Mansion. It wouldn't make sense to require you to beat the gym in order to unlock the gym!
head west of cerulean city to the Rock Tunnel
The third gym is in vermillion city. The Gym Leader is Sarge, and he uses electric-type Pokemon.
It serves one purpose and that is to unlock the Cinnibar Island gym.
The 7th gym leader in fire red is Blaine in Cinnabar Island.To unlock The gym, u must go 2 the pokemon mansion,search the gym key in the basement.
No you sholudnt have to because you just have to have more than 1 Pokemon in your party, trade with a friend!!
If you mean, "how do I unlock the Gym where he is", you have to go into the mansion and get to the basement. There you will find the key to open the Gym
no
U have to beat the third gym leader in digimon poop brown.