You don't have to get them, but Groudon does know dig, which is required for the first stage. The other things you need are Relicanth, Wailord, a Pokemon that knows Fly, one that knows Strength and a lot of patience. Trust me, you will understand after the Braille.
no, you just have to be at least able to go in the snowyside temple.
You can get Groudon, Kyogre, Rayquaza, Regice, Registeel, and Regirock all in Pokemon Emerald. You can only catch the legendaries after you have beaten the elite four and champion. Tip: Try to catch legendaries with Pokeballs rather than fancy balls. It works way better, trust me. Hope I helped! :)
From what I know... there's Regirock, Regice, Registeel, Rayquaza, Groudon, Kyogre and Latios/Latias. 3 Regis/ located in 3 different caves after unlocking in some chamber. Rayquaza/ back in sky pillar after elite four. Groudon/ go to Weather Institute after elite four and they should say there's a drought in a route. Go to that route and there should be a cave. Kyogre/ same as Groudon, except rainy. Latios/Latias- after elite four, your mom will ask you what colour was that pokemon. (Red/Blue) Choose red, Latias. Blue, Latios. When you choose the colour, whatever colour you chose, will be in the wild at Hoenn (damage/catch it quick... it can flee whenever it wants to! Or use your only Master Ball :( )
me plz
Which three? The Weather trio or the Regis? Anyway: Weather Trio: 1.) Groudon - After beating the Pokemon League E4 and Champion, go to the Weather Institute and talk to the guy at the second floor, and he will tell you that drought occurs in a certain route, go to the route the guy tells you and find a cave, it's the Terra Cave, inside is Groudon. 2.) Kyogre - After beating the Pokemon League E4 and Champion, go to the Weather Institute and talk to the guy at the second floor, and he will tell you that rainfall occurs in a certain route, go to the route the guy tells you and find a deep part of water where you can use dive, beneath i a cave, the Marine Cave, inside is Kyogre. 3.) Rayquaza - After the story where Rayquaza stopped Groudon and Kyogre's fight, go to the Sky Pillar, use a Mach Bike to pass the floor cracks, move up to the top floor, there is Rayquaza. Regis: 1.) Regice - In route 105, unlock the Island cave, inside is Regice. 2.) Regirock - In route 111, unlock the Dessert Ruins, inside is Regirock. 3.) Registeel - In route 120, unlock the Ancient Tomb, inside is Registeel. Note: You only have one chance on catching this legendaries, if you defeat them, they will permanently be gone. So make sure to save before you fight them.
No, you can catch them only once per game.
For Pokemon ruby you can catch the three regis, rayquaza, groudon, and latios/latias. In sapphire you can catch the three regis, rayquaza, kyogre, and latios/latias. However, in emerald you can catch kyogre, groudon, rayquaza, the three regis, and latios/latias.
Rayquaza, Kyogre, Groudon, The Regis, Latios and Latias, and a lot more.
U can catch the Regis,Rayquaza..but u get Kyogre and Groudon after the Elite 4.
You can't catch arceus, unless your doing a gameshark or hack. But you can catch deoxys, kyogre (in sapphire), groudon (in ruby) rayquaza and the three regis. Also, you can catch jirachi oh, I forgot, deoxys is an event too. i
You can fight in the battle tower, catch the three regis, search for latios/latias, or in emerald you can catch groudon and kyogre
ruby=groudon+raquaza+latios+the regis sapphire=kyogre+raquaza+latias+the regis emerald=raquaza+groudon+kyogre+latios or latias+the regis
you can catch lugia,kyogre,groudon,raykouaza,ho-oh,zapdos,moltres.articuno,and the three regis
regis groudon rayquaza latios and latias deoxys
You can get Groudon, Kyogre, Rayquaza, Regice, Registeel, and Regirock all in Pokemon Emerald. You can only catch the legendaries after you have beaten the elite four and champion. Tip: Try to catch legendaries with Pokeballs rather than fancy balls. It works way better, trust me. Hope I helped! :)
Regis, Regigigas, Latias, Latios, Rayquazza, and I'm not exactly sure you can catch Kyogre or Groudon, but I know for sure the first ones I mentioned
RayquazaRare or Legendary? Legendary, the same in Ruby and Sapphire. Groudon, Kyogre, Rayquaza, Latios/Latias, the Regis. Not very many, rare pokemon,besides what you can get after the national dex, like sudowoodo, or smeargle.
some Pokemon u can get by just findig the for example regis, groudon, rayqaza, kyogre and latios/latias. if u wanna catch mew, deoxys you have to have a special event.