HeiSei Lizard-Suited project

The two of this lizard, were the project to be a boss of the Moon Land; the center hoop of the Sky Vortex.

Normal Lizard
(or Unknown lizard), a reptile with gills red eyes between the face.
Teeth were in the inside the mouth, near to the throat. This giant can smell the warm blooded humans
just in case the key to this monster.

HeiSei Lizard
With the dead  body long to the laboratory, the lizard was not usual to be activated.
Somehow this creature of the clone moon, was release and trashed down the fort and make its way the piece of the Angle of Strike.
The prototype creature teleport and drilled all the way down at the bottom of the moon.

This boss might be the design of Namco original game.