Metroid Database Bestiary

The miniboss of Kraid. The Mua thrives in acid; its hide is extremely resilient. Its only weak point are the two glowing orbs that appears on either side of its body near its mouth. The purpose of these orbs is unknown, but they could possibly be its sensory organs. Samus encounters the Mua shortly after she turns on the ceiling rail system in Kraid.

The Mua has a pretty straightforward attack pattern. It stays below the acid in the center of the screen, and will open and close its mouth twice. After the second time, depending on which block you are standing on, it will rise up and try to bite you. This is when you need to jump up to the ceiling rail system which will take you to the other side. As the Mua squirms, shoot its glowing orbs with Missiles as quickly as you can. It will sink back into the acid below, and then rise up to attack you again depending on which block you stand on.

Further into battle, the Mua will cause the acid to rise up. Jump up to the higher blocks to avoid getting hurt, and then jump back down. The Mua will shift from blue to a more purplish color when it is near death. Use Beams if you run out of Missiles during battle.

The Mua looks and acts very similar to the Yapping Maw from Super Metroid. Mua even sounds very similar to "Maw."