Axiom of the End

A struggle exceeding any other lies ahead.
Exceeding every challenge; exceeding all anomalies.
What Hikari and Tairitsu have been through... What the two must yet endure...
To reach the end, you must walk that same unknowable path which brought them here.
See past their fate. Uncover the final secrets of Arcaea.
But know this... to be sure: the path cannot be found by yourself alone.
Axiom of the End is an interface element in Arcaea. It presents a series of challenges through which most of the songs in Final Verdict must be unlocked.
== Overview ==
Axiom of the End can be accessed by selecting the Final Verdict song pack in Music Play (not World Mode), and then selecting the button (see image) that appears under the Pack Select button.
Players must be online to access Axiom of the End.
The main screen for Axiom of the End presents a series of icons corresponding to each of the songs that can be unlocked, though only Infinite Strife, can be selected at first.
Entering the main screen for the first time will bring up the text on the top of this page. 
After this, a difficulty selector will appear where selecting one (of PST, PRS, FTR, and BYD) is required to proceed. The chosen difficulty can be changed from the top left corner.
=== Song challenges ===
Selecting a song's icon will bring up a series of challenges that must be completed before the song can be played.
Songs other than Infinite Strife, require certain other songs to be unlocked first.
Entering Infinite Strife,'s challenge list for the first time will bring up the following text:
Face the songs you have already confronted and find a way forward.
Challenge each have cryptic titles and require certain tasks to be completed (see individual song pages for details).
To clear challenges that require playing songs, songs must be played on the selected difficulty or higher if Past, Present, or Future is selected, or on Future/Beyond if Beyond is selected (Future will work even if the song has a Beyond chart).
Completing a challenge will automatically bring up the challenge list screen, with the challenge crossed out.
Completing a challenge on one difficulty will automatically complete it on all lower difficulties.
Note that Testify has additional requirements after completing its numbered challenges.
=== Song unlock ===
Songs can be played on the chosen difficulty after clearing all relevant challenges.
Selecting the song icon at this point will play an animated PV, and the song jacket will appear along with the chosen chart difficulty. Select the jacket to start the song.
You will be able to play the song at any difficulty equal to or lower than the one on which the challenges were completed.
You may choose the chart difficulty via a difficulty selector on the bottom left.
During the last 10 seconds of the PV, a countdown will begin on the bottom right. Once it reaches 0, the song will automatically start on the selected difficulty.
Once the song starts:
*The song is played using the HARD Gauge, regardless of Partner.
*Upon Track Complete, the chart of the corresponding difficulty, and of all lower difficulties, will be unlocked.
*Upon Track Lost, the results screen will display the text Terminal Forgotten..., along with an unlock percentage. This starts at 0%, and increases with every Track Lost by some percentage depending on score and difficulty (see Hidden Songs). When this reaches 100%, only the chart of the corresponding difficulty is unlocked.
This does not apply to Testify, which allows players to play the chart to completion the first time, and is unlocked automatically on completion.
Once a song has been unlocked on one difficulty, the PV will no longer play when trying to unlock it on higher difficulties.
== Unlock progression ==
Please refer to individual song pages for their specific unlock requirements.
Category:Game Mechanics