Riolu evolves when it is at maximum happiness and then when it's at maximum happiness you have to level it up in the day time 1 level.
no
Riolu evolve's normally and pichu evolves through happie'ness
A Riolu, which can evolve into a Lucario.
you get a riolu which can evolve into lucario
(well first let me tell you this don,t trade Riolu because if you get him back or not he or she will not evolve)but anyway Riolu evolve at Lv.16 or 24
from Riley he gives you a Riolu egg and you can evolve it at high friendship
Riolu is evolved when levels up with high happiness during daytime.
i would say electubuzz,magmar,riolu,pikachu,charmelion,watotle,or iyvasaur
Go to iron island and help this dude called riley and he will give you an egg which contains riolu and give the riolu happiness and it will evolve into a lucario.
Catch a Riolu and evolve Riolu.
It depends in how many times you use it in battle, if you use him allot and he levels up soon he will evolve.
Riolu evolves if it has shared high friendship with its Trainer during the day.