Gazamir

Gazamir (ガザミール) is a hidden sub-boss from Phoenix Magnion's stage, Power Room. It's a big Mechaniloid based on the gazami crab. The player can find two Gazamirs, each in a hidden room with a long ladder above molten metal.

Strategy
Zero has to fight both mid-bosses while hanging on the ladder. It attacks by shooting bubbles from its mouth and grabbing the ladder with its claws. There are two variation to the claw attack: It can only be attacked by long-range weapons, otherwise only if it's close enough for Zero to hit with the Z-Saber. After defeating it, it falls into the molten metal below the ladder.
 * One is to slowly climb down/up the ladder, stopping at either the top or bottom. This is the best chance to score some heavy damage on it with the Buster Shot.
 * Another, more dangerous attack has Gazamir suddenly drop down from the ladder at a great speed. To avoid this, the player has to let go of the ladder with almost perfect timing. Tricky to avoid.