Super Metroid/Items

Overall Items

 * Energy Tank: Each Energy Tank increases your maximum energy capacity by 100. Energy can be refilled at your ship, Energy Stations, and enemies may leave refills for 5 points or 20 points.


 * Reserve Tank: Stores leftover energy when picked up at full health. Refills Samus's energy tanks when she is brought down to zero on auto or selected in the Samus Screen on manual. Starts out empty, can't be refilled at normal energy stations.

Power-ups
By defeating enemies, there's a chance that a power-up will appear to replenish any missing ammo or health. There are two types of health power-ups: small (5 energy) and large (20 energy). Ammo comes in the form of missiles (2 per power-up), super missiles (1 per power-up), and power bombs (1 per power-up).

Normal

 * Hi-Jump Boots: These are acquired in Norfair. They will increase Samus’s jump height to twice as high as previously.


 * Varia Suit: Obtained after defeating Kraid. The Varia Suit cuts damage to Samus by 50% and allows her to survive superheated rooms.


 * Grapple Beam: Acquired after defeating Crocomire in Norfair. Shoots an electrical beam that lets Samus swing from grapple points. Can also be used as a short-range weapon that kills small critters.


 * Gravity Suit: Obtained after defeating Phantoon. The Gravity Suit allows Samus to move normally through liquids (magma and water). Cuts damage to Samus by 25%.


 * Space Jump: Obtained after defeating Draygon in Maridia. Allows Samus to continually somersault in midair. Alters Spin appearance


 * Screw Attack: Obtained after defeating the Golden Torizo. Allows Samus to do a invincible spin attack upon somersaulting. Can break bomb blocks.

Missiles

 * Missiles: Missiles are stronger than the power beam and can open red doors by 5 shots. Each missile tank adds extra 5 missiles. max: 230


 * Super Missile: They are 5 times stronger than normal missiles. They move very fast and cause a tremor that brings down enemies that are attached to walls or ceilings. Opens green doors with one blast. opens green-button shutters. each super missile tank gives 5 extra. max: 50

Beam Related

 * Charge Beam: This weapon allows you to charge your regular beam to release a stronger energy blast. A charged shot will damage bosses, which normal shots won’t, and requires no energy or ammunition. Can be used in combination with the morph ball for a five-bomb drop. Jump while charging for the pseudo Screw-attack, which deals damage just like the screw attack but only one use and lower damage. Obtained in Brinstar


 * Spazer: The Spazer splits the regular beam into three blasts, and it greatly increases both the power and accuracy of your beams. Can not combine with the plasma beam. Good strength. Obtained in Red Brinstar


 * Wave: Causes shots to fire in a wave-like motion and pass through walls. Using this in combination with other beams will give them this ability as well. High strength. Obtained in Norfair


 * Ice Beam: Causes shots to freeze enemies, sometimes charged shots must be used to freeze them; turns the beam color to blue. Using in combination with other beams will continue adding a freezing effect to your attacks. can stand on frozen enemies. Good Strength. Obtained in Norfair


 * Plasma Beam: The most destructive of all beams. Can damage multiple enemies in a single blast. using this with other beams adds a enemy-piercing function to them. Changes beam appearance to a green streak. Obtained in Maridia after defeating Draygon.


 * Hyper Beam: Acquired during the Mother Brain fight. Can not be charged but will fire continuously with the fire button held down. It is far more powerful than the plasma beam and can smash shutters and certain walls.

Morph Ball Related

 * Morph Ball: After acquiring this, Samus will be able to morph into a ball to traverse narrow passages.


 * Morph Ball Bomb: These are guarded by a Torizo statue. Once acquired, you can plant up to three bombs at a time.  The explosion can also bounce the morph ball a short distance into the air.


 * Power Bomb: Power Bombs damage everything on screen, including things somewhat offscreen. Yellow doors can only be opened with a Power Bomb.  They can also be used to affect the environment in some areas.


 * Spring Ball: Allows Samus to jump while in Morph Ball form.