To get bad eggs on Pokemon Fire Red you either have to cheat, corrupt data, or manipulate the game.
from Pokemon FireRed
If there is only one it will ruin ur whole freakin' game so make sure u don't get a bad egg what ever the hell that means.
there are none
A faster way to get an egg to hatch is to ride your bike.
Only bring Pokemon of the same gender into the daycare. You can also refuse to take the Pokemon egg.
I sometimes get bad EGG
It will probably freeze you game
There is no such thing as a bad egg.
Charmander is a fire type of Pokemon. To get a Charmander egg in Pokemon FireRed, you can breed Charizard with Ditto.
from Pokemon FireRed
My mom
he hatches
Chikorita cannot be caught in Pokemon FireRed. However, you can catch a Bayleef in Pokemon Colosseum, transfer it into FireRed, and breed it to get a Chikorita egg.
If there is only one it will ruin ur whole freakin' game so make sure u don't get a bad egg what ever the hell that means.
beat the Pokemon league and go to 4 island and breed two compatible Pokemon and BAM! you have an egg
Breed eltabuzzs and hatch the egg
Its an egg glitch that occurs if you take an egg out of the PC and you save the game then turn it off during saving, apparently your egg will remain in your party but an egg replacement will be in your PC in the same spot the egg you took out of the PC earlier if you check this egg it will say Bad egg and if you hatch it.... Your game will be destroyed!