Tower of Light

From Wikitroid, the Metroid wiki

The Tower of Light is where Samus acquires her Wavebuster on Metroid Prime. The Tower of Light also holds a chamber which holds one of 12 Chozo Artifacts, The Artifact of Lifegiver. Note that you will need the Gravity Suit to access this chamber. The Wavebuster can be acquired by destroying 12 walls. Eyons will cover these walls and bounce your rockets off if you miss. Once all 12 are destroyed, platforms will lower down allowing you to get the Wavebuster.