Rapid-fire lasers
Press [Up]x2, [Down]x2, [Left], [Right],
[A]x2, [B]x2, [C]x2 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.