Hidden throughout the dense passageways of Zebes are a range of many handy weapons and items. Each one adds a new ability to Samus' Power Suit, many are vital to your success.
Keep in mind that you can only have the Ice Beam or the Wave Beam equipped - you can't mix beam weapons. Read below for a quick description of each item.
This special ability allows Samus to assume the shape of a small metallic ball - perfect for crawling through narrow tunnels throughout the terrain.
You'll also be given the ability to plant bombs in this mode once you've found the Bomb upgrade.
Missile Tanks litter the corridors and shafts of Zebes, you'll be finding plenty of these while exploring the vast caverns. Each Missile Tank found adds a further five missiles to Samus' maximum arsenal. Defeating Kraid and Ridley will also reward you with a healthy batch of missiles. You'll be able to find a maximum limit of 255 missiles.
Initially, Samus' arm cannon's range will be quite short, but once this weapon's found early in the game her shot range will reach the edge of the screen for any weapon type equipped. You'll also be treated to a new sound effect for Samus' beam projectiles.
This will give Samus an extra 100 energy units to her current maximum health level - definitely something you need. You'll be able to carry up to a maximum of six energy tanks, but eight are hidden throughout the game.
While in Morphing Ball mode, Samus can plant bombs that damage any enemies within range. The bombs can also break open certain blocks to uncover hidden tunnels in the environment.
The Ice Beam changes Samus' beam to a freezing shot, any enemies struck by the beam will be instantly frozen. Shoot the target again to unfreeze it. While an enemy is frozen Samus can jump on top of them without taking damage. You'll need the Ice Beam when venturing into Tourian near the end of the game as it'll be critical when facing Metroids.
This deadly ability allows Samus to charge up energy in her body while performing a somersault jump. When Samus jumps, she'll begin flashing indicating that the Screw Attack's in action. Any enemies coming in contact with Samus won't stand a chance.
Gives Samus' arm cannon the ability to fire a series of energy balls that fly in a wavy pattern. The pattern of the shots can greatly help in destroying smaller enemies and gives Samus a wider firing range.