A new main story quest in the fourth stratum. Ride the subway to the new skyscraper area to initiate it.
A new side event with RINNE. It can be accessed by having challenged her at least once and unlocking 15 achievements.
Two other new side events in stratum 4. Please refer to the in-game map to find their location.
Early unlock of a new ability. Obtain the ability by checking the treasure chest near the save point after clearing the new main story quest. This ability will allow players to reach new areas.

The Speedy Athlete outfit has been moved to its intended location which is reachable with the new ability. If you have already obtained the outfit, it will no longer be accessible until re-obtained in this version.

An experimental autosave feature. When entering a save point room, the game will save in one of 3 reserved autosave slots