This is 1 on 1 baseball, like you might have played in the back yard or sandlot.
There is no fielding or base running:  all fielding and base running is controlled by "ghost players."
The result of a hit  ( out , single, double, triple, or HR) is determined by the location of the hit and also the type of hit (  grounder, line drive , fly ball,  high fly ball) .   Basically, if the ball is hit to where a ghost fielder could  make a play , then the result is an out).    
You control the Red player , who is right handed. The computer controls the blue player who is left handed.
Game Options:
1 Player ( Default)
2 Player : set P1 difficulty to A
AI pitch skill:   P0 difficulty B = easy , P0 difficulty A = hard
BATTING
As the red player, you start off batting.  
PRESS BUTTON to start the AI pitch .  
The pitch will be either a fastball or an offspeed pitch .  There are nine possible locations
( down the middle, high, high inside, etc).
If the pitch is a strike, swing by pressing the button.
To swing low, push down while pressing button.
To swing high, push up while pressing button.
Button only is a level swing.
Three called or missed strikes is a strike out.
4 balls is a walk.
After 3 outs, change sides.
Any Base Hit will score a runner on 2nd or 3rd base.  There are no sacrifice bunts or sacrifies flies in 1 VS 1 Baseball.
 
PITCHING:
( there is a one second delay after each hit so pitch will not register until then--a beep will sound when the pitch has registered)
1. Push up to select fastball, down to select offspeed.
2. Next, select the location of the pitch by holding the joystick in the desired direction ( or no direction) and then press the button.

Change View:
While in the pitcher/batter view, move TV type to B&W to check runner positions.
Game ends after 9 innings , or after top of ninth if Blue Player is leading.
There are no extra innings