Major League Baseball Featuring Ken Griffey, Jr. Cheats

Place the crosshair anywhere outside the yellow batting circle and hold it there. Then, hold Z and press C-Up, C-Left, or C-Right to look at one of the bases. Now release Z, then release the other button. The crosshair will disappear from the pitching screen. Select and throw any pitch, which will always be a strike or a ball. This is always unhittable.

Select exhibition mode, then at the team selection screen, repeatedly tap C-Left + C-Right + C-Up + C-Down

To do this, the ball needs to be hit very high, to the point where you see the huge shadow on the field. When you see the huge shadow, run all the way back to the wall and get in alignment with the shadow. Now instead of jumping and trying to rob the homerun just stand there, and when you do this, your player should warp through the wall and catch the ball for an out. And if it's not a homerun, the ball will bounce off the wall right into your hands.