Editing Aps

Aps is the boss of the [[Sewers]]. It is the first scripted encounter of the game that can be encountered in a preemptive formation.
{| class="wikitable"
|+Stats
!Level
!HP
!MP
!ATK
!Magic Atk
!Defence
!Magic Def
!Dex
!Def %
!Luck
!Exp
!AP
!Gil
|-
|18
|1800
|0
|40
|40
|36
|160
|63
|4
|5
|240
|22
|253
|}'''Weaknesses'''

Fire (2X)

Back attack (4X)

'''Drops'''

Phoenix Down

== Strategies ==

=== Preemptive Encounter ===
Aps can be fought as a [[Preemptive Boss Battles|Preemptive Boss Battle]].

==== Fast Aps ====
Enter the battle with a braver on Cloud.

Hold Up+Circle to throw grenades with everyone, then hold Down+Circle to Braver with Cloud. Aps will do a Sewer Tsunami. Throw grenades with everyone until Aps dies (reselect grenades with Cloud the first time)

==== Slow Aps ====
If you don't remove any materia from Cloud, he is more likely to do too little damage with his Braver to kill Aps with the fastest strategy, requiring him to use a second Sewer Tsunami for additional damage. We can speed up this version of the fight by choosing who we throw grenades with to get the fastest possible grenade throwing animations.

After the first Sewer Tsunami, defend on Aerith's next turn and queue a grenade with Cloud and then Tifa. Aps will use a Sewer Tsunami after Tifa's grenade, then queue another grenade with Tifa to be used after that should kill.

<youtube>https://youtu.be/vcW9nFJjo1U</youtube>

=== Non-Preemptive Encounter ===
Using a Magic attack on Aps will change its AI mode so, for the next four turns, it does: nothing, Sewer Tsunami, nothing, Reverse Sewer Tsunami.

Aps starts the fight with a Sewer Tsunami. Cloud uses Bolt for his first attack on this fight for this script manipulation, then everyone throws grenades. Aps will use one more sewer tsunami.

If the first Sewer Tsunami of the fight gets Tifa her Limit Break, then her fast ATB recovery speed allows her to get another grenade in before Aps' next Sewer Tsunami, and that results in dealing enough damage before Aps' Reverse Sewer Tsunami to kill. Otherwise, Aps will do a Reverse Sewer Tsunami before the last grenade is thrown. A strategy is used on [[Air Buster#Tifa Cloud Barret|Air Buster]] to make this likely to happen.

== AI Script ==

=== Start of Battle ===
<pre>
Declare OpeningAttack = 0
Declare SewerTsunami = 0
Declare Count = 0
Declare HPDanger = 0
</pre>

=== Turn ===
<pre>
If (OpeningAttack == 0) Then:
    Use Sewer Tsunami* on all targets
    OpeningAttack = 1

ElseIf (SewerTsunami == 0) Then:
    3/4 Chance:
        If (any opponent is on the back row) Then:
            Use Tail Attack on random opponent on the back row

        Else:
            Use Tail Attack on random opponent

    1/4 Chance:
        If (2nd opponent is alive) Then:
            Use Lick on 2nd opponent

        Else:
            Use Lick on random opponent

ElseIf (Count == 0) Then:
    Count = 1

ElseIf (Count == 1) Then:
    Use Sewer Tsunami* on all targets
    Count = 2

ElseIf (Count == 2) Then:
    Count = 3

ElseIf (Count == 3) Then:
    Use Sewer Tsunami* on all targets
    Count = 0
    SewerTsunami = 0
</pre>

=== Counter (Physical) ===
<pre>
If (HPDanger == 0 AND Self HP < 1/3 * Self Max HP) Then:
    SewerTsunami = 1
    HPDanger = 1
</pre>

=== Counter (Magic) ===
<pre>
SewerTsunami = 1
</pre>

== Statistics ==

=== Preemptive Battle ===
Chance of killing with the standard strat based on the number of materia on Cloud and random stat rolls:

* with no materia removed: 73.78%
* with 1 materia removed: 95.45%
* with 2 materia removed: 99.49%

Given a Braver damage roll, here are the chances that Aps will die on the last grenade and not use a Sewer Tsunami:
 446 0.0008886751773037042
 447 0.0014328603145875786
 448 0.0022466203901531927
 449 0.0034327514862553515
 450 0.005120740150693457
 451 0.007469385130216481
 452 0.010668291818029765
 453 0.014937801163253526
 454 0.020526945096876182
 455 0.027709094249441388
 456 0.03677508323063365
 457 0.04802375965930096
 458 0.061750106412412575
 459 0.07823132742107279
 460 0.09771152878667483
 461 0.12038583468288117
 462 0.1463849343972502
 463 0.17576114593370085
 464 0.20847708662825104
 465 0.2443979549690235
 466 0.2832882575480464
 467 0.3248135598564251
 468 0.36854750051974794
 469 0.4139839253727942
 470 0.4605536149371729
 471 0.507644723323845
 472 0.5546257537967373
 473 0.600869700334488
 474 0.6457779014151636
 475 0.6888021754097264
 476 0.729463936145332
 477 0.7673692255008501
 478 0.8022189200622999
 479 0.8338137352813035
 480 0.8620540388296383
 481 0.8869348541654257
 482 0.9085367412314607
 483 0.9270134602211335
 484 0.9425774576861389
 485 0.9554842629325182
 486 0.9660168428763205
 487 0.9744708469399311
 488 0.9811414978639293
 489 0.9863126621444132
 490 0.9902483928488649
 491 0.9931870134933356
 492 0.9953376264772432
 493 0.9968787869482191
 494 0.9979589826193328
 495 0.9986985040061511
 496 0.9991922749455318
 497 0.9995132348985697
 498 0.9997159190626989
 499 0.9998399588328338
 500 0.9999133065537497
 501 0.9999550623850385
 502 0.9999778434855502
 503 0.9999896861075768
 504 0.9999955089638669
 505 0.9999981917025453
 506 0.9999993362904908
 507 0.9999997818408582
 508 0.9999999371639363
 509 0.9999999845521945
 510 0.9999999968588178
 511 0.9999999994914497
 512 0.9999999999375799
 513 0.9999999999945866
 514 0.9999999999997062
 515 0.9999999999999926
 516+ 1.0