1st, beat the elite 4 and the champion. 2nd, make sure you found Lostelle (If you haven't,
go to Three Island and beat the biker goons then go to berry forest and look for her and
beat the Hypno attacking her). 3rd, go to Mt. Ember. 4th, beat the Rocket's guarding the
entrance. 5th, look for the ruby (Hint: It's near the braille writing). 5th, return the
ruby to Celio in One Island to get the rainbow p@$$. 6th, go to Four Island. 7th, go to
Icefall Cave. 7th, look for HM07 Waterfall. 8th, climb the waterfall and enter the ladder.
9th, fight the Grunt. 10th, go to Five Island. 11th, go to Six Island. 12th, go west then
in that area, look for a braille tablet and decode it. 13th, fall into the holes that the
braille tablets tell you to fall in. (If it says up in braille, go into the north hole).
14th, grab the sapphire but a scientist will steal it but tell you the 2nd p@$$word to the
Rocket Base on Five Island. 15th, go to it. 16th, beat all the grunts and get all the
items there. 17th, battle the scientist and get back the sapphire. 18th, go to the Pokemon
Center on One Island and give the sapphire to Celio. 19th, capture a Groudon in Ruby or
Emerald. 20th, trade between FireRed and Ruby/Emerald. Make Emerald trade Groudon. Voila!
You have a Groudon in FireRed!

i think they ment WITHOUT another game and other person you cant do it

would I know that?

trade from ruby,duh now u dum dum u give me gum gum muhaha hahahaha ha hah ha ha ha hu

Trade from Ruby or Emerald.