Hammer Isoginchaku

The Hammer Isoginchaku (ハンマーイソギンチャク) or Hammer Sea Anemone is a creature developed by Dr. Indigo using the chemical SIQ for Shiki's plot to use monstrous creatures to attack East Blue to force the World Government to submit to him.

This creature is pink colored, and it resembles a mollusc. It has tentacle-like members coming from his head that can act as hammers.

It appears in One Piece Film: Strong World, when the creatures from Merveille invade Shiki's palace. One is chasing after Franky, trying to stomp on him but when the creature finally corners him, Franky used his cannon to defeat it.