Ok, I have no idea if this works on XD, but I've tried it (in fact I use it every day) on
COLLUSEUM. And on Colluseum it does work - if you don't believe me, try it. So this is
what you do:

 - enter a battle against a Pokemon you wish to catch

 - WARNING! you must have AT LEAST 1 type of poke ball you wish to use an infinite amount
of times (I suggest Ultra balls)
AND at least 1 DIFFERENT type of pokeball (pokeball, great ball, net ball, your choice)

 - You must also have 2 Pokemon of your own in battle.

 - When the pokemon you wish to catch is sent out, with your first pokemon's turn, select
the pokeball in the bag that you wish to reuse (the ultra ball for instance).

 - Then with your second Pokemon's turn enter the bag again and SWITCH the pokeball you
wish to REUSE with the one you DO NOT useing the "Y" button.

 - Then exit the bag with "B" (the pokeballs will stay switched) and your second pokemon
will still be free to attack, use a different item or switch out.

 - The "catching sequence" will go through as usual and you may or may not catch the
Pokemon.

 - But when you next look in to bag both the pokeball you switched AND  the one you
technically used will still be there!

 - You can repeat this same trick as many times as you like until you catch the shadow
pokemon, works every time!

    PLEASE NOTE that I have NOT tested this trick on XD, but I know it works on Colluseum.
 I don't know if the glitch was fixed in XD, try it out it might work.  I also HAVE NOT
tested this glitch using a MASTER BALL.  It may or may not work with a master ball, but I
suggest you save the game before trying it.

l8r,

 - angelwing

ok go to ur pc and put every single pokemon in there u can(u will still hav one) go to the
bath room ( or w/e u want just leave for about 10 min) then go bac and u will hav alll
leavle 50 or higher 
p.s i used my strongest to keep out 

pps u hav to beat the first 2 leavles at mt battle to get it to work =]]]

ppps want to know something better?

well if u start the game and never save and when u finalys get to lugia u go to ur pc and
put all ur poke mon in ur pc and turn it of 

no lie it will work not kidding btw they well all hav cloned them selves and u will hav  2
of each =]]

all you have to do is catch zooks zangoose when you battle him the second time at the
cipher key lair. zangoose knows shawdow rush shadow hold. once you get him / her down to 4
1/2 bars he learns counter get it down to 2 bars it learns crush claw. keep it shadow
until after you battle the red dude and the blue dude. purifie him and he learns false
swipe and should be about level 70-75. He should be stronger then shadow Lugia. use false
swipe it should take his HP down to 1. Take lots of ultra balls. use ur mball on celibe.

to go to the island where greevil is at... go to the sailor town and talk to the guy that
gave you your first pokemon. He then will give you a boat that is parked in the harbor. I
hope this helps!

to get them you have to get the card it will vitrilly make them (and the legendy birds)
you play as the doges and beats the birds then go to master Grevill and he will have the
doges Lv.100

Ok peeps. Has anyone other than you found your cheats to be correct? just wondering and
trying to catch a primape.

i think you are lying about the lugia thing when you forrget all his moves and you get all
the rare pokemon.

figure it out by your self!im not going to tell you but i'll tell you one thing it's with
the master that has the lugia and moltres and everybody you have to beat him once and then
do something then you have to battle the master again because he changed his pokemon and
there on level.100 this time so watch out you need three master pokeballs for this but im
not telling you where you can get it all so then he only has those three pokemon then when
you catch it you will beat the game 100% and enjoy with the best pokemon's in the
game!!!IF YOU FIGURE IT OUT!!!!!!

ok i beat 1~100 with groudon and rayguaza they are both lvl 70 it was an easy win

go to pyrite town walk in front of dukings store thing then goas far right as possible.
the barrels will have W with a circle.

go to agate villiag talik eguan he will say there is deoxys[in normal form].in order to do
yhis you must have mew,zapdos,moltres,articuno,mewtwo,lugia,ho
oh,raikou,suicune,enti,celibi,jirachi,lotio
latias,regirok,regice,registeel,kyogre,groudon,reayquaza.they dont all have to be in your
party.

an easier way to catch pokemon withput a masterball is the keep tapping B on the first
move of the ball and A on the second moves of the ball and repeat...it makes it easier!!

frist get the master ball,buy a other ball then you fite a shadow pokemon thow the master
ball then swith it with the other ball and you still hav the master ball.

p.s you onley need 1 other ball.

to git a hoover bike go to the dude in the parts shop and he will tell hes at some dudes
house and go thair and a old man will tern it in to a hoover bike

ok go to port place and ask the guy for a sun shared to det espon and  teach espon mimic
so when you fight lugi you cokpy its strongst move and catch it easyer.And teach tedrous
simmic toss so it will take down the weaker pokemon!!!!!

if you dont have all shadow pokemon battle trainers and miror b will appear faster than
usual.its no lie i have 63 shadow pokemon

Ok go to your pc then go to the purify chamber now heres the type order to get a perfect
circle
 Water
 Ground
 Fire
 Grass
 Make 9 of these and put xd001 in one of them you will get a message that says somethings
different about lugia go to the HQ lab and you can purify lugia

If you try to purify it with clogone secents or battle with it or keep it in your party it
won't get any closer to being purifed. :(
What you have to do is to make all 9 sets in the purfiy chamber "Best circules" (If you
don't under standit means that you have to make the order of the pokemon so the type it's
facing where the other pokemons's type is weak to it.) Then have lugia in the 1st set and
it will say "Huh, somethings different about lugia..." the go to the lab and press A while
in the circle in the middle and you know the rest.:) (P.S it took me a while to figure
this out on my own>:)

0k well i have a umbre0n,walrin,t0getic,h0und00m,m0ltres,zapd0se,lapras,blissy,and
dewg0n..i 0nly used walrin,t0getic,h0und00m,zapd0se,lapras,blissy nd i beat all 100
battles..it was awes0m l0lzz..bt enewayz itz k0o :D

it's should be baned. do not do! you could problry do it with a gameshark or a Action
Replay! Pokemon Cannel rules!