Enable the "All weapons" code. Press 1
to switch to the lightsabre. Press 2 twice to get Han Solo's
blaster from Star Wars: Episode IV (A New Hope). You can also
charge the weapon by holding Z (secondary fire) For maximum
fire power, hold Z until the charging sound has stopped.
This will kill the storm troopers with one shot.
Han Solo's blaster is part of the game's regular weapons. You
can get it by killing a certain enemy (as in all the other weapons).
You use the primary fire button to shoot and the secondary fire
button to charge and release a more powerful shot.