It's not a NaGa DeMon game, unfortunately. I'm crafting it as an example of how to use my up-and-coming guide to writing a free RPG. I needed an example of the guide in action, so I'm writing the Chgowiz RPG for it.
Reminds me of those Japanese rubber-monster films. Make sure to add double monster scenarios, Godzilla vs Mecha-Godzilla. The clone armies always have the emergency scenario of building their own monster to battle the first one, resulting in massive epic destruction of the whole planet.