The fastest Pokemon you can get is ninjask catch a nincada train it to level 20 and it will become ninjask.
Ninjask by far because of its speed
You evolve a ninjask with room in your party pretty simple really
No, because when Pokemon Gold, Silver, and Crystal were made, Ruby, Sapphire, and Emerald weren't made, thus that makes it not a existing Pokemon then.
Ninjask is a Bug and Flying type pokemon.
Nincada or ninjask that knows Dig.
Ninjask is a Bug and Flying type Pokemon that evolves from Nincada at level 20. In the third generation it learns new moves at levels 20, 25, 31, 38, and 45.
Ninjask doesn't evolve into Shedinja. In fact, Nincada evolves two ways, Ninjask or Shedinja, depending on how full your party i once your Nincada levels up to Level 20. If it is FULL, it turns into Ninjask. If your party is NOT FULL, it evolves into Shedinja. Hope this helps. ~Pth
Salamance, metagross, sceptile, aggron, claydol, ninjask or shedninja, ursaring ( after elite 4) raichu with volt tackle. Rhydon
"ninjask doesn't evolve but if you have a empty slot of your Pokemon team when nincada evolves to ninjask a shedinja will appear in the empty slot."
Leave an extra space in your Pokemon party then train nincada to level 20 it will become ninjask but if you check your Pokemon party you should also notice a shedinja has appeared.
I don't really know some other rare Pokemon but I do know how to get shedninja in Pokemon emerald. First, you have to find a nincada that has a bold nature and evolve it into ninjask. Right after it evolves, look in your party and you might have a shedninja that says you met it at the same level in the same area at the same level caught with the same kind of pokeball, the same ID number as ninjask, and even the same move set as ninjask. What I think is really weird about shedninja is he only has 1hp and it never gets more hp as you level it up. Hope this helps.