To kill a host of an X parasite without being attacked, charge your beam to full power and perform a spinning jump into the enemy. This will destroy most minor enemies in one hit. The stronger ones (for example, Zebesian Space Pirates) will take more hits, but you will sustain damage each time you hit them. This maneuver will also work on certain Bosses. The real Screw attack gained by defeating Ridley X is far more powerful. granting you invincibility and the ability to destroy all enemies (except Bosses) on contact.