ice worm (armored core vi)

IA-02: ICE WORM

A boss and an autonomous Coral-powered C-weapon developed by the Rubicon Research Institute that appears in Armored Core VI: Fires of Rubicon.

Prior to its name reveal, it was nicknamed ルビコニアンデスワーム (Rubiconian Death Worm) from Japanese fandom, as a parody of a cryptid mongolian death worm, which started the "Rubiconian Death" series of nicknames for enemies in ACVI.