You can catch shellder in Pokemon red, blue, yellow, gold, silver, crystal, FireRed, XD, diamond, and pearl.
In Pokémon AshGray, you can find Shellder in the waters of Route 21. Use a fishing rod to catch it while fishing or look for it while surfing. Additionally, Shellder may also appear in certain areas during specific weather conditions, so keep an eye out for it while exploring coastal locations.
You can find mespirt in : Dimond Pearl Platinum HeartGold Soulsilver Black 2 White 2 Pokemon Mysterdungeon Darkness/Time/ Sky (Maybe the new Mystery dungeon) (You may be able to catch mespirt in the new games, Pokemon X and Y)
The only way to catch Zorua in Pokemon Black or White is to have it traded by someone else (Zorua can be bred). You may also get it as a future event Pokemon.
Try fishing you may catch a Magikarp.
well i think that your original pokemon has to be a level 40 or just go in a cave thats what i did
You are not allowed to catch other trainer's pokemons on any of the Pokemon games. You may only catch Pokemon from the wild or receive them through other means (events, game corner, eggs, etc.)
Staryu, Shellder, Eevee and Poliwhirl. Hope this helps, It may not be all.
no
Zekrom is in both games, however, you may catch it in white version.
you can't catch groundon in Pokemon fire red! you may be able to trade it from Pokemon ruby though.
You would catch and evolve Pokemon. You may also choose to release some from your PC.
Route 205 (south),It's really hard to catch it, the frequency is 5% so it may take minutes or so... good luck in catching the shellderalso Fuego Ironworks (if you see the river then use the super rod)
grass hysteria
you cannot catch it. but you may be able to catch it with action replay. the easier way is to trade.
You can find mespirt in : Dimond Pearl Platinum HeartGold Soulsilver Black 2 White 2 Pokemon Mysterdungeon Darkness/Time/ Sky (Maybe the new Mystery dungeon) (You may be able to catch mespirt in the new games, Pokemon X and Y)
if you are talkng about jolteon, no u cannot but u can transfer it or u may be able to catch it in the Pokemon mansion. if you are talking about the diamond 135 which is either finneon or lumineon i forgot, catch it in the water
The only way to catch Zorua in Pokemon Black or White is to have it traded by someone else (Zorua can be bred). You may also get it as a future event Pokemon.