While you're playing, hold down the 1 key plus one of the other keys
 to get the effect. In addition to holding down those two keys, hold
 down the 
 
 7 key to get the powerful version of that hit.
 2 Long fly ball
 3 Line drive
 4 Grounder
 5 Pop-up
 6 Bunt
 
 PC CD
 
 To reveal the Cornfield
 From the Stadium Select screen hit this button combo:
 Up, Down, Right, Up, Down, Left, Up.
 
 To reveal the Mystery Stadium
 From the Stadium Select screen hit this button combo:
 Right, Left, Up, Left, Down, Right, Left.
 
 Monster Home Run:
 A sure home run will be hit when you hold down the 1,2 and #7 keys.
 
 Secret: there are other special codes using the # keys.