Once you defeat darkrai in battle that is the end of the main game.
After you defeat Dialga, you'll be required to beat Wigglytuff and all of the members of the guild. Once you beat them, a spring will be unlocked for you to visit. You can evolve Pokemon here.
You can evolve at a place called Luminous Springs after you've finished the main story and have beaten the guild there.
you have to beat the main story and the darkrai battle is in the afterstory. as far as I know, you cant recruit him.
look it up on google ("pokemon explorers of darkness secret slab") and enter it on the main menu
Pokemon sapphire for starters but on the main Pokemon Diamond and pearl Pokemon Mystery Dungeon Explorers of Sky is.
After you defeat the E4 and finish the main story when you end up back in your house you will get the Super Rod. There are no other rods, apparently.
You've completed the main story.
beat the main story line.
you have to complete alot of the main story and when you do enough it will be unlocked when azurill and marill come to the guild and ask you to go there to get the water float
no there is not a way but u can trade pokemon form pokemon MDE of darkness to MDE of sky same with items u can do it through the main menu
yes