Pokemon platinum 999 master balls cheat?

This gives you 493, but you can use it over and over again:

L+R to activate:

94000130 FCFF0000

B2101D40 00000000

E0000D00 0000003C

01ED0001 00000000

00000000 00000000

00000000 00000000

00000000 00000000

00000000 00000000

00000000 00000000

00000000 00000000

00000000 00000000

D2000000 00000000