Its inside a pokeball inside the Pokemon mansion on Cinnabar Island
One.
The Pokemon is captured and it stays inside the pokeball as a ball of energy. It will come back out once the trainer decides that it should
inside a pokeball is a Pokemon u caught. also inside a pokeball is like a Pokemon's territory and items Pokemon are holding. hope this helped.
Inside the PokeBall is a Rare Candy, if you use it on a PokeMon it will level it up by 1 level.
After you beat the elite four go to Steven's house, on the table there is a pokeball and a note. Inside the pokeball is Belldum.
It's inside the Cold Storage inside an item pokeball. South of Driftveil.
You obtain Eevee in Yellow, the same way you obtain it in Red, Blue, and Green. Go to Celedon Mansion, on the roof, there is a house. Inside is a pokeball. Eevee is inside the pokeball.
you cant its a fake pokeball... But i know whats probably inside it!
You receive the Eevee from Celadon Mansion, from inside a Pokeball on the top floor.
After you beat the League and go to steven's house and there is a pokeball on the table.It has a beldum inside it.
Basically, Inside a pokeball is your terrain following along with the item its holding. Lets say you're a squirtle then you would look like you're in the ocean!