use moves that arent fighting or normal. use moves that r dark and ghost to kill it faster becuz its super effective. use all the other types until it kills it.
Chat with our AI personalities
Dark attacks. I suggest something common such as bite which a lot of the early pokemon can learn
Haunter.... There isn't that many ghost types in firered besides the Gastly line which you can find in Lavender Town's Pokemon Tower
In Pokemon firered you can't, but in Pokemon leafgreen you can get it then trade it to Pokemon firered.
To defeat ghost Pokemon use ghost or dark type moves. If youre fighting a ghost poison you can also use psychic type. normal and fighting types don't affect them but everything else will do normal damage to them
Gengar is a ghost type of Pokemon. You can get it using the duel slot by putting FireRed into the Gameboy slot.