Tempestissimo

==Unlock Method==
;Pre-requisites: Story entry VS-6 must be unlocked and read.
;Unlocks: Past, Present, Future
Selecting Tempestissimo while it is still locked will bring up 5 locked song jackets, each corresponding to various challenges. The challenges can be completed in any order, except for the middle one. Clearing a challenge on a certain difficulty removes the lock from it for that difficulty and all lower difficulties. It also causes a story-related phrase to be displayed. The challenges are as follows (from left to right):
#Two options:
#*Clear Equilibrium with HARD Recollection Rate.
#*Clear Equilibrium with Grade EX 5 times.
#Two options:
#*Clear Antagonism with a MAX RECALL of over 300.
#*Clear Antagonism with Grade AA 5 times.
#This challenge is unlocked once the other 4 challenges have been completed.
#Clear Equilibrium, Antagonism, and Dantalion in that order without failing or restarting.Note: These may be cleared with different partners.
#Clear .
The lock is removed from the middle challenge once the 4 other challenges are completed. After selecting it for the first time, story entry VS-7 automatically plays, and the song starts at the selected difficulty. Otherwise, selecting the challenge will simply start the song without replaying the story.
==Anomaly==
Trigger Time: 1:25
;Unlocks: Present (PST only), Future (PRS only), Beyond (FTR only), '''
To trigger the anomaly, the following requirements have to be fulfilled:
#The last 2 digits of the displayed number of Fragments (i.e. not including stacks) are the same (e.g. 0, 11, 322, 5400).Note: this can be easily achieved by clearing a PST 1 chart with a sealed partner, which will award exactly 10 fragments, or 20 fragments for the first clear. Alternatively, fragments can be deducted by starting and quitting songs with Shama (UNiVERSE)'s skill (-10 fragments) or Shirabe's Awakened skill (-1 to -10 fragments depending on chart difficulty).
#Hikari (Fracture) is the selected partner and her skill is not sealed.
#The necessary Recollection Rate (see table below) is attained at the trigger time.
#The rewards for the selected difficulty have not already been obtained.
# (The Beyond difficulty is exempt from this requirement.)
The last two requirements are not necessary if Testify has been unlocked.
Upon meeting the above requirements, the anomaly occurs and the song immediately transitions to the next difficulty chart. At this point:
*The Recollection Gauge is replaced with a unique variant of the HARD Recollection Gauge (see article).
*The pause button disappears, forcing the player to either complete or lose the track. This can be subverted by selecting the app manager button then returning to the game.
*Tairitsu (Tempest) appears in the background, with her expression changing depending on player performance. The game uses her default expression when the Recollection Rate is roughly constant, an annoyed expression when the Rate is increasing or on Track Complete, and a smiling expression when the Rate is decreasing or on Track Lost.
*On PST/PRS difficulty:
**Achieving Track Complete will unlock the next difficulty chart and 
*On FTR difficulty:
**Achieving Track Complete will unlock the Beyond difficulty chart and 
**On Track Lost, the results screen will display the text Anomaly Lost..., along with an unlock percentage. This starts at 0%, and increases with every failed attempt. When this reaches 100%, the Beyond chart is unlocked. The percentage unlocked depends on score and difficulty.
*Regardless of the outcome, a flat amount of 11 Fragments is rewarded (12 if the last two digits are 99). This ensures that the last 2 digits always remain the same.
===Recollection Rate Requirement===
The Recollection Rate required to trigger the Anomaly depends on Hikari (Fracture)'s level, where the requirement is relaxed for higher levels.
Note that at level 1-5, the Anomaly instead requires no LOST notes before the trigger time.
The requirement is given by:
Hikari (Fracture)'s Lv	1 	2 	3 	4 	5 	6 	7 	8 	9 	10
Required Rate 	No LOST notes	No LOST notes	No LOST notes	No LOST notes	No LOST notes	94	88	82	76	70
Hikari (Fracture)'s Lv	11 	12 	13 	14 	15 	16	17	18	19	20
Required Rate 	65 	60 	55 	50 	45 	40	35	30	25	20
==Trivia==
Locked_tempestissimo.jpg|Pre-unlock jacket
Partner Tairitsu Tempest large.png|Tairitsu (Tempest) default expression
Temp tai angry.png|Tairitsu (Tempest) annoyed expression
Temp tai twisted.png|Tairitsu (Tempest) smiling expression
*"Tempestissimo", according to t+pazolite, means "tremendous storm".https://www.youtube.com/watch?v=Plu8_rCyaG4 The title combines the word "tempest" with the Italian suffix "-issimo" for singular superlative adjectives, often present in musical terminology such as fortissimo.
*Tempestissimo is the signature song of Tairitsu (Tempest), who is featured on the jacket art.
*The small text on the jacket art is an excerpt from Entry VS-6, and reads: "The path here was blazed by the worst recollections of mankind, and what remains at the end is, and ever will be, the end."
*The chart design credits allude to both Hikari and Tairitsu's conflict and to the parts of a musical composition. From comments by Nitrohttps://twitter.com/NitroX72/status/1272558036364582913:
**Overture - An instrumental introduction to an opera/play/etc.
**Intermezzo - A composition which fits between other musical or dramatic entities.
**Crescendo - The highest point of intensity; is also a dynamic mark used in music to mean "louder".
**The Tempest - A symphonic poem by Tchaikovsky, based on the Shakespeare play of the same name. An example of a piece that features extreme dynamic markings; it calls for a loudness of five f's (𝑓𝑓𝑓𝑓𝑓; fortississississimo) at one point.
*The story-related phrase that appears after each unlock challenge is as follows:
*#"The girl in white and the girl in black cannot reconcile." (excerpt from Entry VS-1)
*#"She once more faces the girl she wishes she could befriend." (excerpt from Entry VS-3)
*#No message. This, instead of showing a message, triggers story Entry VS-7.
*#"And thus it is Tairitsu's turn to gain the upper hand." (excerpt from Entry VS-5)
*#"She spares no hesitation. The strike comes in an instant." (excerpt from Entry VS-4)
*Tempestissimo was added to O.N.G.E.K.I. bright MEMORY as part of the second Arcaea x O.N.G.E.K.I. collaboration.
*Prior to being unlocked, Tempestissimo appears as an unnamed entry on the song select list like other Anomaly songs. Levels are displayed as '?' on locked difficulties, and the leaderboard is not shown. The song's jacket art is replaced with an empty, greyed-out jacket (see gallery above).
**This doesn’t apply to Beyond difficulty, as it appears as its usual empty cell that cannot be accessed prior to unlocking.
*Tempestissimo is one of a few songs with two extended versions:
**The first is included in t+pazolite's album "Heartache Debug".
**The second, In un dolore da record (Italian for "in record-breaking pain"), is included in Memories of Wrath, along with its in-game version.
*Prior to mobile v3.12.0, the 5th challenge was cleared by retrieving the password "zd2xcf5" from the https://lowest.world and inputting the code into a textbox that would appear after clicking the challenge.
**The link to obtain the code to clear the 5th challenge came from several clues, revealed via an ARG.
**In version 3.12.0, the lowest.world requirement was removed, requiring the player to instead clear . As a result, lowest.world was taken offline, with the URL automatically redirecting to the official website (until after v4.0).
==References==
Category:Songs needing extra fingers
Category:Arcaea Original Songs
Category:Hidden Songs