Its best if you have 1 fire Pokemon and 1 ground Pokemon.
See question "Is this a good team to beat the elite four"'s answer.
use cheat codes
Nothing. Don't waste your time.
nothing really, you can keep fighting them
you only have to beat the elite 4 on Pokemon fire red not ruby
Fire and water are the best combination to beat the elite 4.
One island.
The same you can do in Fire Red.Read my answer to that here:What_can_you_do_after_you_beat_the_elite_four_in_pokemon_fire_red
You have to migrate them, which I think can only be done when you beat the elite four.
Its best if you have 1 fire Pokemon and 1 ground Pokemon.
against the elite four infernape will do very good with its fire type moves but since the first gym is ground it is not so easy to beat it with a fire type. i beat the elite four 6 times with my infernape. the beat moves for it are fire blast and flame wheel
See question "Is this a good team to beat the elite four"'s answer.
use cheat codes
opps no more bcoz its now THE END!!!!! that weird......bill should have taken you to it right after you beat blane in cinnabar gym........ BUT DO NOT GO BACK AFTER THAT BEFOREYOU BEAT THE ELITE 4 YOU WILL BE STUCK FOREVER
first you need the rubys in fire red but first beat the elite four
All have to be high level:one water.(to beat elite flint/fire) one legndary.(To beat strong Pokemon /psychic/Cynthia's)one normal.(to beat some of Cynthia's and others)one flying(to beat ground)one backup(normal)one fire(to beat the bug type)