NAGI:
Complete the game without using any continues to unlock NAGI.
Steam achievements:
ACHIEVEMENT – HOW TO UNLOCK
Demonic Duet – Finish the game in Duet Play with both players alive.
Far East Temple Knight – Finish the game without continuing.
Holiday in Hell – Keep the holiday spirit alive.
Line ’em up! – Clear 25 lines in Eternal Babel mode.
Matrix Master – Finish the game on Advanced difficulty.
Operation Successful – Finish the game on Standard difficulty.
Que Pholith Conqueror – Finish the game on Demonic difficulty.
Revenge is Sweet – Defeat the true last boss.
Rosenkreuz Agent – Finish the game on Novice difficulty.
The Long Road – Get 6 Alter Breaks in one game.
The Spice of Life – Finish the game with every character.
Who’s next? – Defeat every opponent in Demonic Challenge mode.