Help his friend celio get two gems so you can trade with hoenn games!
you can catch mewtwo at cerulean cave
Give it to celio in 1 island
Get the crystals on 1,2,3,4,5,6,7 islands and bring to Celio.
After you have obtained both the Ruby and Sapphire gems, you should go back to One Island so Celio can fix the machine he's been working on. By returning the two gems, trade with the Hoenn region is unlocked (ie. you are now able to trade between your version and Pokemon Ruby, Sapphire and Emerald). The two gems do not unlock anything else, but clear a significant obstacle which prevents you from completing part of your National Pokedex.
Help his friend celio get two gems so you can trade with hoenn games!
one island
He will put both gems in the network machine which when operational will allow you to trade between ruby, sapphire, emerald, colosseum and xd gale of darkness.
give it to celio
After getting the ruby and delivering it to celio he will let you go to islands 4-7.
You give it to Celio
you must have beaten the game and caught at least 60 known species of Pokemon in your pokedex. then celio will ask u to get the ruby and sapphire for him. hope this helps.
he is in one island in the hospital.
Give it to Celio on one island.
You get a map from Celio, on one island.
No, but you can trade aron from ruby to fire red by beating the elite four and getting the ruby and sapphire and giving them to celio
yes