Leganchor the Gelroid

Leganchor the Gelroid (レグアンカー・ザ・ゲルロイド) is the guardian of the underwater city in Area J. Leganchor is a Pseudoroid based upon that of a jellyfish. A shard of the Biometal Model L is present in Leganchor's turbines. He and Lurerre were assigned by Serpent to keep the Serpent Report (a document detailing Serpent's intentions) a secret.

Leganchor can attack with icicle dragons, rippling waves, harpoons and smaller jellyfish. With the Ice power granted by Model L, he can freeze opponents by touch. His personality is mostly that of a senile elderly citizen, as he often complains as to how things are wasted by the youth, and often tries to give "wise" advice.

Manga
Prometheus sent Leganchor and Protectos to attack the Guardian Base while it was docked in Area G and Vent was far away. After defeating Fistleo and Hurricaune, Vent hurries to Guardian HQ and fights against Protectos, and Leganchor starts pulling the Guardian Base underwater to sink it. Vent defeats Protectos and transforms into Model LX, going underwater to cut Leganchor's tentacles and free the Guardian Base. Leganchor fights against Vent and appears to have the upper hand, but Biometal Model F appears and Vent transforms into Model FX, defeating Leganchor with a Megaton Crush.

Trivia

 * In Mega Man ZX Advent, the Skull Anchor's data says that they have Pseudoroid DNA, indirectly referring to Leganchor.