...

I caught Uxie and Azelf with either a Dusk ball or a Ultra ball.I didn't catch
Mespirit,though.I recommend that u put the lake pokemons in a status problem
first.Remember,don't try to catch Mespirit with a dusk ball,though because it's not in a
cave.Just get a Bronzong or a Golbat to use Block or Mean Look so mMespirit can't escape.

just an easy way to catch mesprit:P
go to go to sangem town. look at poketch app. 13(it's a map with a star, circkle etc)go
from sangem town to a route nearby like 202. go back to the town, 202, town and so on, and
so on. keep looking at the map too. if that weird face (mesprit) is on route 202 go into
the grass and look if it's there. if it's not, go back and try again. don't fly to him or
walk a lot cause it won't work.
this is the quikest way.

x999 masterballs-
#1- 94000130 fcff0000
#2- b21c4d28 00000000
#3- b0000004 00000000
#4- 00000f4c 03e70001
#5- d2000000 00000000

should work

how do u put the codes?

you have to have an action replay....

The action replay is a chip for using cheats on your ds. It's not licensed by Nintendo and
it can't work on a dsi. If you input a code number inside a specific game(pokemon
pearl,for example)u can get a cheat that the code is. If you already know this,(which I
think most people do)u don't have to read this.