You can only find Darkrai through a Pokemon Event.
In Pokemon Emerald you cannot.
you dont you pea brain
To receive a Manaphy in Pokemon Platinum, you must send over a Manaphy Egg from the game Pokemon Ranger after completing a special mission involving Manaphy.
Umbreon can only be gained from trading from Ruby, Emerald, Sapphire, Pokemon XD or Pokemon Collosseum.
They are in the maniac tunnel.
You can only find Darkrai through a Pokemon Event.
battle island
underground. look for an explorers pack in Eterna city.
No
you cant find it. get an eevee, max its happiness, level it up at night, and tada! you have an umbreon!
In Pokemon Emerald you cannot.
Umbreon is a Dark type pokemon.
you dont you pea brain
You have to have seen every Pokemon in the regular dex.
in the Chroma Ruins on B4F you use Drifblimp to go up and use a pokemon with 3 psy power to open the door umbreon will be in there
Unless you have pkmn ranger and have completed the manaphy mission you can see it in a book in Backlot's office.