Shin Megami Tensei: Nocturne

What do I have to do to pass this door in the 3rd Kalpa?
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God was a dream of good government. You will soon have your God, and you will make it with your own hands.-Morpheus -Deus Ex

Great, no pointless 100% map completion for me then because I've mastered most of them alreddy (title:master).

What's behind that door/
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God was a dream of good government. You will soon have your God, and you will make it with your own hands.-Morpheus -Deus Ex

Girimehkhala with Pierce and other cool moves in the Dark door. I never did the other doors so don't know for those.

Girimehkala with Pierce is in the Fifth Kalpa.
I think the one on the Chaos aligned door in Third Kalpa is a demon with several elemental spells.

There's also one Shady Broker behind the Law aligned door who sells a Mothman with non-elemental spells. Behind the Neutral aligned door is a Broker who sells Deathstones for 100000 Macca a piece.

I made a mistake as well. It's the broker behind the Chaos aligned door that sells the "Nuke" demon, while the Broker behind the Law aligned door sells the "demon with the impenetrable defense".
Just to add the info, these are the demons:

Shady Broker behind the Law aligned door sells:

Lv 50 Vile Arahabaki

Drain Attack
Tetrakarn
Makarakarn
Tetraja
Rakukaja
Sukukaja
Dekaja
Dekunda

Shady Broker behind the Chaos aligned door sells:

Lv 4 Haunt Preta

Megido
Megidola
Megidolaon
Mediarahan
Samarecarm
Tetrakarn
Makarakarn
Recarmdra