Metroid : Walkthrough 7

At the location indicated in the image, use your beam to break the ceiling above and proceed to the upper level.

Similar to POINT 1, at the location indicated in the image, use your beam to break the ceiling above and proceed to the upper level.
Proceed to the left to obtain two 'Missile Tanks'.

Proceed through the hidden passage. Ahead, you'll find the Ice Beam, so switch from the Wave Beam to the Ice Beam. This is because the Ice Beam is effective in the upcoming new area, not the Wave Beam.

Proceed through the hidden passage at the POINT location, then follow the arrows to find three missile tanks. After obtaining them, return to Brinstar.

Follow the arrows and return to Brinstar.

There are statues of Kraid and Ridley. If you shoot the statues of defeated bosses with a beam, a passage will appear below, allowing you to cross to the left. However, if you haven't defeated Kraid and Ridley yet, you won't be able to proceed to the left.

In this area, your arch-nemesis, the Metroids, appear in large numbers. These enemies cannot be defeated with normal attacks, so be cautious. The way to defeat them is to freeze them with the Ice Beam and then hit them with 5 missiles.

If you get grabbed, your energy will be continuously drained. To escape, morph into a Morph Ball, use a bomb, and roll away sideways.

Defeating the Metroids as you progress will ensure a smoother journey. Before reaching the next gate, make sure to replenish missiles and energy from the Metroids.

To reach Mother Brain, you must destroy the five Zebetites ahead. Zebetites can be destroyed with 10 missiles each, but they will self-repair if the missiles are fired too slowly. Continuously fire missiles in succession.

Return to the right, replenish your health and missiles, and destroy the five Zebetites! Once all are destroyed, replenish your health and missiles, then challenge Mother Brain!

To defeat Mother Brain, shoot one missile at the glass, then hit Mother Brain with 32 missiles. Freezing the RINKA with the Ice Beam before attacking Mother Brain is more efficient. Be careful not to fall to the left, as it's difficult to return to your original position!

After defeating Mother Brain, escape within 999 countdown. Since the platforms are narrow, proceed slowly and carefully. With 999, you'll have enough time to climb. Congratulations! With that, you've completed Metroid!