You have to make a new game
No, you can not get Lucario in Mystery Dungeon Blue.
you cant its only in blue and red
You have to turn them into the leader (You!) first.
you can't trade on Pokemon mystery dungeon OK
you have to beat rayquaza to start evolving and having different leader pokemons.
Yes there is a unknown dungeon in Pokemon blue mystery dungeon! You'll have to connect with your friends if you want to go there
buy it.
nope
No, only joy seeds are available in Mystery dungeon Blue and Red
yes all Pokemon evolve in Pokemon mystery dungeon blue rescue team after you beat Rayquaza and legendary Pokemon don't evolve.
how can you get up to RAYQUAZA easy in pokemon mystery dungeon blue rescue team?
Curently, Pokemon Mystery Dungeon: Blue Rescue Team is out and available all around the world.