Viata
Arcane
Amala dungeon was part of the Maniax version(the one that was released outside Japan). Wikia only give this as difference between each version:
The differences between the original version and the later versions are as follows:
Maniax
Maniax Chronicle
- A new opening movie.
- The addition of the Labyrinth of Amala and, hence, the addition of the Fiends.
- A new "true demon" ending.
- A bonus for keeping your first demon party member (Pixie).
- Devil May Cry 2's Dante: you fight him, and you can have him in your party if certain conditions are met.
- The option of allowing several previously infusible bosses to join your party.
- The option to fight and later enlist the help of Beelzebub and Metatron.
- Pierce was added as a new skill.
- General game balance adjustments (lowered ambush attacks, lower instant death rates, etc.)
- Selectable difficulty level from the on-set (Normal or Hard)
- Elimination of the Debug Mode.
- Raidou Kuzunoha the XIV, along with Gouto-Doji, replaces Dante as the Demi-fiend's potential ally.