Requiem (Joker/SP-L) 304
Monster Rancher Metropolis: Monster Rancher Advance 2 Archive (GameBoy Advance): Passwords List: Joker: Requiem (Joker/SP-L) 304
The instructions for unlocking this breed are available in the Shrine Topics Section of the MRA2 Archive.
By Thorr on Wednesday, January 8, 2003 - 10:57 am:

Mozart

P 145
I 120
A 145
S 135
D 95
L 100

UpScythe

I don't why I didn't get this one earlier, but here it is!

-Thorr