|This article is about a/an giant monster in Choudenshi Bioman.|
Neptunecanth (ネプチューンカンス Nepuchūnkansu, 16) is a Mecha-Gigan of Neo Empire Gear, assisting Farah and Psygorn
It is a huge Mecha-Gigan with a trident as its main weapon and can emit explosive flashes from the eyes. It also has a pressurized horse in the torso.
Neptune Canth is a Mecha-Gigan sent as a final defense by Doctor Man to defend a device set up in a children's hospital by Farah that expands magma to the point that it would cause both a volcanic eruption and a massive earthquake 6 hours after activation. After a short battle, Bioman destroy the Mecha-Gigan with Reverse Straight Line Cut from Super Maser.
to be added