Power Troopers
Use Normal Beams or charge a Normal Beam at it 3 to 4
times. Alternatively, use charged Power Beam shots or Super
Missiles. Pursue from a distance if possible, as Power Troopers
cannot exactly be stunned.
Wave Troopers
Use Wave Beams or charge a Wave Beam at it (two to 4 times).
Alternatively, use charged Wave Beam shots while locked on to the
target. Do not be tempted to use the Wavebuster combo, as you
would only be wasting missiles.
Ice Troopers
Use Ice Beams or charge an Ice Beam at it and finish it with one
missile. You can keep using charged Ice Beam shots on solitary
units if desired to preserve your missile supply.
Shadow Pirates
Use the Thermal Visor to see them. Use Wave Beams or charge a Wave
Beam at it at full force (two to 4 times); or, fire with ease
with the Plasma Beam.
Plasma Troopers
Fire at them with your Plasma Beam 3 or 4 times. Hide
behind a wall and the Plasma Beam will end up finishing them with
its burning effect. Do this to other pirates as well, even though
they only need about 3 shots to be killed, only about one will
evaporate them if you just wait patiently. *** As long as they
are engulfed in flames, they will keep taking damage.
*** All Trooper types can be killed instantly if they get caught
in a Power Bomb blast. This tactic is particularly useful when they
appear during the Omega Pirate battle, especially under the hard
difficulty setting.

Use the following trick to kill Air and Water Pirates quickly. If
you have the Ice Beam and Charger Beam, you can kill them easily.
One shot with the Ice Beam will freeze them for a few seconds. This
may require a few shots because they sometimes try to dodge your
shots. You can then either shoot them with the Ice Beam until they
die (four or five shots), shoot a Charged Ice Blast (Charger Beam
required) which will kill them in one or hits, or shoot a missile.
This will save a lot of time and health.

When you enter the 1st room with the Space Pirates after the timer
sets off, wait thirty seconds and an explosion will kill all the
pirates on the lower part of the room.

When a Pirate shoots a weapon that is not a really fast beam, hold L
and move left for the 1st shot, then right for the next. Moving
the same way does not work well because you run into things.
This trick can be used anywhere that you see a Pirate that can be
killed with any beam weapon, except for the special Troopers (Wave,
Ice, Power, and Plasma Troopers). When Samus encounters a Space
Pirate, charge your Wave Beam and lock on to them. Fire the charged
Wave Beam at the Pirate then quickly change to the Plasma Beam. Fire
an uncharged Plasma Beam while the Pirate is still being
electrocuted. It will catch on fire, and will remain on fire and
still be electrocuted so that they cannot fire their weapons. This
works best when there are many Pirates in the area, so that you can
get to the others quicker. The Pirate will not be able to move and
will burn to death. If you are close to the Pirate when it falls, it
will explode and you will take damage.

Use the following trick to kill flying Pirates without taking a lot
of damage. After they shoot missiles, lock on and shoot them with a
super missiles. *** If you do not use Super Missiles, they will
crash down and you will take a lot of damage. After you destroy one,
hide. *** If you shoot one with another one behind it or close to
it, you will blow them both up.