RB176 Ferrocrusher

The RB176 Ferrocrusher is a manually-piloted heavy industrial machine, presumably used by the Galactic Federation for construction and destruction on Sector 2 of the Bottle Ship. After Samus initially meets MB, a figure wearing a Galactic Federation suit (later known as the Deleter) drives the Ferrocrusher through a stack of crates, attempting to kill Samus and MB as well.

The Ferrocrusher is a machine designed primarily for industrial purposes, but can be used as a devastating vehicle in combat situations. It attacks with large metal arms for lifting, lasers for precision cutting, and heavy industrial buzzsaws for ripping and tearing. The Ferrocrusher's arms must be frozen, and then broken off with a Missile. Once Samus breaks off both arms, the Deleter will switch engage several buzzsaws in front of the Ferrocrusher, and attempt to run over Samus while still using lasers occasionally. Both the ramming attacks and the Ferrocrusher's lasers can be dodged with the Sense Move. In order to overcome the Ferrocrusher, Samus must freeze one of the treads used to move to reveal a weakpoint on top of the machine. Samus finishes off the Ferrocrusher with an Overblast or a Missile, critically damaging the machine and sending it into a wild frenzy.

After the Ferrocrusher is seemingly defeated, the vehicle starts to crash into walls. When the object stops, the suit within the cockpit is missing.

Trivia

 * The name of the Ferrocrusher is apparently a combination of the prefix "ferro-" referring to iron, and "crusher," which indicates the machine's industrial purposes.
 * Considering Metroid's admitted source of the Alien films, the Ferrocrusher could be an homage to the Power Loader Exoskeleton from Aliens. Both are yellow industrial machines with cagelike cockpits, not designed for but improvised for combat.