Hidden ending scene

To unlock a bonus scene after defeating the final boss of the main story, collect all of the secret reports in the game, including the one in Another Day.

Save Screen Sprites

After completing various tasks, you will unlock different character sprites on the save screen. You start off with Neku at first.

Beat	Complete the third week
Joshua	Complete the second week
Mr. Hanekoma	Collect all secret reports
Rhyme	Collect all items
Rhyme (noise form)	Complete the noise list
Shiki	Complete the first week

Unlock Ultimate Difficulty

After beating the game, you can select A New Day Chapter, and go to Shiba-Q Headquarters and on the 3rd floor you will be able to purchase it as a quest item.

Unlock "Another Day" Chapter

To unlock this chapter you must beat the game. It will appear on the chapter selection menu. This mode is a non-canonical extra chapter.

View total play-time

Hold L + R on the save data menu screen to be able to see how long you have played.