Midget Players:
Enter the following names in lower-case when you create a player - 'jacob paterson', 'isaiah paterson', 'keegan paterson'
Unlock Legends Team:
Unlock all 25 Legends Team players
Unlock Heroes Team:
Unlock all 25 Heroes Team players
Unlock 'Secrets' Mode
Purchase all the available 'Ballpark Upgrades' (upgrades must be on maximum level) in 'Owner' mode and after you have purchased your final upgrade an extra option will appear in the 'Buy Assets' menu which will be called 'Secret Stuff'.
Unlock Secret St. Patrick's Day Jersey:
Enter the password 'NEVERLOSE SIGHT' when you create a player.
Unlocks
Obtain the corresponding 'MVP' points to unlock the following Classic Stadiums:
2500 MVP Points - Astrodome,Houston, Texas
2500 MVP Points - Veteran's Stadium, Philadelphia, Pennsylvania
2500 MVP Points - Crosley Field, Cincinatti, Ohio
2500 MVP Points - Qualcomm Stadium, San Diego, California
3000 MVP Points - Cleveland Municipal, Stadium Cleveland, Ohio
3000 MVP Points - Griffith Stadium, Washington, DC
3000 MVP Points - Olympic Stadium, Montreal, Quebec
3000 MVP Points - Tiger Stadium, Detroit, Michigan
4000 MVP Points - Fenway Park (Classic), Boston, Massachussetts
4000 MVP Points - Shibe Park, Philadelphia, Pennsylvania
4000 MVP Points - Sportsman's Park, St. Louis, Missouri
5000 MVP Points - Forbes Field, Pittsburgh, Pennsylvania
5000 MVP Points - Hiram Bilthorn Stadium, San Juan, Puerto Rico
5000 MVP Points - Metropolitan Stadium, Bloomington, Minnesota
5000 MVP Points - Cinergy Field, Cincinatti, Ohio
Legendary Players:
2500 MVP Points - Ferguson Jenkins
2500 MVP Points - Hal Newhouser
2500 MVP Points - Lou Boudreau
2500 MVP Points - Al Kaline
2500 MVP Points - Billy Williams
2500 MVP Points - Enos Slaughter
2500 MVP Points - Phil Niekro
2500 MVP Points - Ralph Kiner
2500 MVP Points - Richie Ashburn
2500 MVP Points - Rick Ferrell
2500 MVP Points - Robin Roberts
3000 MVP Points - Bob Lemon
3000 MVP Points - Jim Bunning
3000 MVP Points - Larry Doby
3000 MVP Points - Lou Brock
3000 MVP Points - Luis Aparicio
3000 MVP Points - Bobby Doerr
3000 MVP Points - Dennis Eckersley
3000 MVP Points - Hoyt Wilhelm
3000 MVP Points - Monte Irvin
3000 MVP Points - Orlando Cepeda
3000 MVP Points - Phil Rizzuto
3500 MVP Points - Early Wynn
3500 MVP Points - Eddie Matthews
3500 MVP Points - George Kell
3500 MVP Points - Harmon Killebrew
3500 MVP Points - Joe Morgan
3500 MVP Points - Bob Feller
3500 MVP Points - Brooks Robinson
3500 MVP Points - Carlton Fisk
3500 MVP Points - Catfish Hunter
3500 MVP Points - Juan Marichal
3500 MVP Points - Pee Wee Reese
3500 MVP Points - Red Schoendienst
3500 MVP Points - Rod Carew
3500 MVP Points - Rollie Fingers
4000 MVP Points - Roy Campanella
4000 MVP Points - Mickey Mantle
4000 MVP Points - Tom Seaver
4000 MVP Points - Jim Palmer
4000 MVP Points - Jimmie Foxx
4000 MVP Points - Mike Schmidt
4000 MVP Points - Robin Yount
4000 MVP Points - Warren Spahn
4000 MVP Points - Willie Stargell
4500 MVP Points - Honus Wagner
4500 MVP Points - Lou Gehrig
4500 MVP Points - Nolan Ryan
4500 MVP Points - Reggie Jackson
4500 MVP Points - Satchel Paige
4500 MVP Points - Ty Cobb
4500 MVP Points - Walter Johnson
4500 MVP Points - Willie McCovey
4500 MVP Points - Bob Gibson
4500 MVP Points - Buck Leonard
4500 MVP Points - Cy Young
4500 MVP Points - Yogi Berra
5000 MVP Points - Johnny Bench
5000 MVP Points - Babe Ruth
5000 MVP Points - Jackie Robinson
Unlock Sparky Anderson:
Unlock all Legendary Players
Unlock Tommy Lasorda:
Unlock all Legendary Players