Unlock... Sheep and his friends (Exhibition mode only)
Exhibition mode... Team selection screen... just press and hold L R Select and Start at the same time and the hidden team 'Sheep and his friends' will be displayed in the center... then just press A.

Effect	Code
Hidden team unlocked	L R Select Start + A


Strongest Password
Just choose password and enter the following...

Effect			Password
Cyclone team		1200
New type team		a000
The Megaton Power	<500
Z.T.C Union		H100