You get him by getting all the bonuses for empolions attraction
you can earn shaymin in dusknoir's attraction in the mansion in the haunted zone. You have to earn the bonus for each Pokemon and you unlock him. Then he'll be ur friend when u get his bonus done
there is no code, but you have to clear Empoleons snow slide with all the pokemon ! ;')
Buneary
you can become its friend but you cannot use it sorry
bayleaf is not on pokepark wii only chikorita is
beat the game and, sooner or later your friend list will be done!
Have the electibuzz in the meeting place teach you everything it has to teach and it will become your friend
No, you can't see mewtwo in pokepark wii
P-117 in PokePark Wii is Ponyta
Open all the bonus boxes in venasaurs attraction.
You will be able to battle him after unlocking the top floor in the haunted house at the haunted zone.
Buy it, Internet/shop or maybe (but probably not) a kind friend will give it to you or you might get it for a present like I did at Christmas.