Yes, a level 50 Raichu will need more exp points to level up then a pichu.
Golbat evolves into Crobat on a full friendship level after evolving he becomes extremely fast.
you cant it is evolving into prinplup at level 16 and into empoleon at level 36 and the same thing chimchar and tertwig you cant it is evolving into prinplup at level 16 and into empoleon at level 36 and the same thing chimchar and tertwig
Mii Channel
cheat
try rare candies
Pokemon day care or put exp.share on a weak Pokemon
Just keep on playing the second level over and over. It worked for me. I am still leveling them up for the Gym though. I can't get past Brock:( It's too hard. Try evolving Kakunas and Metapods you can catch at Viridian forest.
To get a Pokemon level up quickly is to have a Pokemon hold exp. Share and then just battle a bunch of trainers or wild Pokemon.
keep battling Pokemon and people
either cheat or battle the as many trainers as possible
Defeating Pokemon that are a higher level that it, or Rare Candies.
Dark Cry? There is no such game. I belive you mean how to level up the Pokemon DARKRAI. Correct?