It is possible to have both of these codes active simultaneously.Wait until the title screen appears for the second time beforeentering the second code.
Press Up(2), Down(2), Left, Right,A(2), B(2), C(2) after the Starbladelogo appears on the title screen and after the animated backgroundhas stopped. The lasers will fire very fast, destroying toughtargets much more quickly. Hold the fire button down to get rapidfire.
When the title screen appears, enter code: