This was actually planned during the olden days of Catastrophic Warfare (my old series) where the Aliens and Shadows had scientific dubbing of their names but I just forgot about that concept and now I’m here to bring it back in Echo 1996
They are similar to those in GKOTM where it’s Titanus (monster name)

Light, Darkness, Asteroid, Leviathan, Sargon and Seeker were the first ones to be planned with those names

Light – Eirian Hakari
Darkness – Eirian Kurayami
Asteroid – Eirian Ramarak
Sargon – Eirian Sarugon
Cranium Reptant “Devastator” – Eirian Zugaikotsu
Kranos – Eirian Midori no Bōkun
Radon – Eirian Ren
Behemoth – Eirian Raksasa
Nuckelavee – Eirian Hikō
Elijinna – Eirian Kōri
Arachna – Eirian Aranea
Kaiju – Eirian Daikaiju
Epitaph – Eirian Ciptaan
Azura “Natalie” – Eirian Hachi
“The Eye” – Eirian Ciarkeon
Leviathan – Eirian Manda
Trespasser – Eirian Scarab
Scram – Eirian Ravager
Seeker – Eirian Bazusō
Lucky – Eirian Roclev
Cyclops – Eirian Cyclops
King Demon – Eirian Satan
Morashin – Eirian Quetzalcoatl

Though you had never seen these but originally, Light’s scientific dubbing was originally Raito, but it didn’t have a feeling of “Protector” so I quickly changed it to Hikari (both of them translate to Light) but there’s already a character with the same name so it was changed to Hakari
Asteroid on the other hand was dubbed as Vahlak, but I’m kinda not used to it so I renamed it to Shōwakusei (it translates to Asteroid) but then I changed it to Ramarak, much like the giant Skull Crawler from Kong Skull Island because they both have the same intelligence like they can both identify a bomb or a grenade that easy