In ANY GAME!!
If you use a moonstone, i think
Chat with our AI personalities
so far, you cannot evolve eevee either to umbreon or espeon on FireRed because on FireRed and LeafGreen, there is no clock system. You must trade eevee to Emerald for evolving to Espeon or Umbreon
No because the game lacks the built in game clock feature which lets the game change from day and nighttime which is essential for evee to evolve to Espeon or Umbreon. If you want these pokemon you will need to use Ruby, Sapphire or Emerald to evolve the Evee because these games have the in game clock feature or you can even trade the Espeon and Umbreon from pokemon colosseum.
You can't. It evolves by the time of day. Since there isn't a clock, eevee won't evolve into espeon OR umbreon.
no it cannot it can only evolve into jolteon, vaporeon, and flareon. it is not until gold, silver, and crystal that you can get umbreon and espeon.
eevees (on any Pokemon game) evolve into umbreon or espeon with happiness. happiness at night will result in an umbreon just as happiness in the day will be an espeon. to increase happiness, walk around with your Pokemon A LOT. i think its like 256 is 1 point. they evolve at about 250.