Skull Anchor

Skull Anchor is an enemy from Megaman ZX Advent that appears in the Artic Ice Floe. This skull-shaped Mechaniloid can expand and contract at will, and borrows its DNA from Pseudoroids (possibly Leganchor) that can freeze enemies. Its intelligence rivals that of people. Once it is destroy by using buster-like weapons, then it will reveal it's inner part. They will be automaticlly destroyed if the player uses a saber to destroy them.''