Press Up(2), Down(2), Left, Right, A(2), B(2), C(2) after the
Starblade logo appears on the title screen and after the animated
background has stopped. The lasers will fire very fast, destroying
tough targets much more quickly. Hold the fire button down to get
rapid fire.
Unlimited continues:
Press Up, Right, Down, Left, A, B, C, Up, Left, Down, Right after
the Starblade logo appears on the title screen and after the
animated background has stopped. The "Continues Left" counter will
read "FREE PLAY" instead of a number. Note that this is only
visible after the first ship has been lost and the game is at the
"Continue" screen.
Multiple codes:
It is possible to have both of these codes active simultaneously.
Wait until the title screen appears for the second time before
entering the second code.
Sites: