On top of Missiles and Super Missiles, Samus will come across a variety of other weapons to help her along her journey. Her Morph Ball will allow her to squeeze through tight spaces, while her Spider Ball will allow her to attach to walls and her Spring Ball will help her soar through the air. Samus' Bomb and Power Bomb will unleash huge explosions, as well as aid Samus in launching to newer heights (like her Space Jump and High Jump Boots will also do). The Varia Suit and Gravity Suit will help Samus through certain obstacles.
With her Charge Beam, Samus will also be able to charge some of her other attacks to cause more damage; with her Ice Beam, Samus will Freeze opponents in their tracks. The Grapple Beam will allow you to grab and throw foes around like nothing at all, the Wave Beam will allow you to shoot through walls and objects, and the Spazer Beam will do the same as the Wave Beam but shoot three beams at once. The Plasma Beam will help with Final Boss Ridley and destroy green plasma doors, while the Screw Attack will be essentially be the Space Jump with an attack included.