Arceus is the "God" pokemon that created the pokemon universe and fourth gen legendary pokemon, he can also become any pokemon type depending on what type of plate you make him hold.
Bisharp is the most boss pokemon
Pikachu is the most well known making it "boss" for fame
I dont have the game but I think you have to battle the Boss pokemon.
Actually that only works on regular pokemon if the boss pad is shiny its a legendary you automatically get it once you beat it a regular boss you get lucky
Pastoria City.
It's Darkrai is the final boss
it should be giritina
kill your pokemon and you die
there is 50 floors and the boss is Kyogre
magikarp= a boss
pikachu of course! :p
Any Pokemon could effective against the freakin boss Cyruss haha!!! lol
Drapion is the boss's Pokemon
I think its Mewtwo