APPEND

APPEND is the sixth difficulty of the game that was added as part of the 3rd anniversary update, with 12 songs having the difficulty as of that update.

It is an optional difficulty meant to challenge the player's multifingering skills, as it gives you wish pieces instead of crystals whenever you reach 75%/100% of the combo. As a result of this, and the fact that it cannot be fairly compared to the other difficulty modes, the difficulty has a prefix assigned to it (which is APD).

Every month, 2 to 3 APPEND charts are announced to be added on the Project SEKAI Broadcast Station. They usually get implemented with a data update. However, there are occasions where a new song will get its APPEND chart added with its release, indicated with an "APPEND" sign on the song's announcement thumbnail.

Currently, there are 16 difficulty levels officially assigned, which range from APD23 to APD38. Only 15 of those levels have at least one songs assigned to them, with APD23 not having a song assigned to it yet.