Press Select at the pennant selection screen, then enter one of the following passwords to unlock the corresponding mascot team.

Password - Effect

Bear Down - Arizona
RamblinWreck - Georgia Tech
Red And Gold - Iowa State
Rock Chalk - Kansas
On On UK - Kentucky
Go Green - Michigan State
Rah Rah Rah - Minnesota
Go Pack - North Carolina State
Go Cats - Northwestern
Hotty Totty - Ole Miss
Go Carolina - South Carolina
Go Deacs Go - Wake Forest
All Hail - Washington State
Hail WV - West Virginia