How do you activate the murder beam on super Metroid?

In Super Metroid, the "murder beam" refers to the powerful beam weapon known as the "Spazer Beam." To activate it, you need to find the Spazer Beam upgrade located in the Wrecked Ship area. Once you've collected this upgrade, it will automatically enhance your beam weapon, allowing you to fire multiple beams simultaneously, which is particularly effective against enemies and bosses.