Sign up to disable those pesky ads. So what is the soul purpose of it, besides Sparda sealing it away or whatever? How did it rise from under the earth's crust, or so it seemed? Is it a tower of pure evil?
The Temen-ni-gru is a very large hellgate. It probably wasn't actually underground. I don't know if you could really call it evil. It was made for an evil purpose but it is basicly just a door.
Yup, it's the original gateway that would allow Mundus and his buddies to come to earth. A tunnel linking the demonic domain to the human world.
Though it seems that unlike on Mallet Islant where you fall into the depths of hell, Temen-Ni-Gru makes you float up to hell. *CAPCOM trolls so much*
It's a portal to Hell as we know, but it also seems to be many other things. It has a charnel house in it full of coffins (assumedly of the people who built/worshipped it) A gladiatorial arena Testing arenas (where you do the warrior/intelligence/technique trials) A dungeon/torture chamber, and also the "Endless infernum" which was maybe just a place to throw people into like an oubliette A theater/music hall Hell's Highway (another testing ground?) The Altar of Evil (place of evil worship) The underground area has what looks like ruins of a city/buildings in it Underground railway Library Power room Statue room (maybe storage rooms of these demonic armours?) Other "storage rooms" like where you find the Ambrosia The area where you fight the Gigapede looks a bit like a Cathedral or grand hall maybe And there are many other halls and rooms standing empty. Who knows what they were for? It seems like whoever built the tower and "ruled" from it also had living areas, storage places, prisons, teaching grounds and entertainment areas for themselves. It's like a large city all inside/under the tower.
^ Considering it came from the same lot who made Resident Evil, I bet there are none, or maybe just one, in a room with some more fire outside of it, at the bottom of a hard to find pit. Temen-Ni-Gru is also a fortress, isn't it? Guarded by big demon guardians, and entry is forbidden to the "powerless", according to Cerberus. So whoever the evil worshippers were who constructed it, they seemed to intend for it to be an imposing monument to strike fear into people, and to be a castle of sorts, and a city, and a gate to the demon world. Everything they needed all in one place to rule the world with?