Shin Megami Tensei: Nocturne Cheats

Obtain 100% on your Demonic Compendium by recruiting, transforming, or fusing every demon that can join your party (184 total). Once you have reached 100%, talk to the man in the Cathedral of Shadows and he will cut the price to summon demons in half.
NOTE:The lowered price effect carries over in a new game+ file.

To access the nostalgic first person view, start the new game plus by beating the game and creating an end cycle save. During your new game on that save press select to change the perspective to a first person view, pressing select again changes the view to normal third person. The first person view does not work in areas with a fixed camera angle.

Get high scores on all burial chamber battles located in the Labyrinth of Amala. There are ten burial chambers and 24 battles (tombstones) overall. You can check if you have a high score by examining the tombstones (the number will be in red font.) Once you have gotten all the high scores, visit burial chamber 1 on your next playthrough. An event will occur and you will be given an extra Press Turn icon. This essentially increases the number of actions you can perform each turn in battle.
NOTE:Your scores carry over to a new game+ file. You can only get the extra icon in new game+ files, not in your very first playthrough.