What happens if you kill O&S at the same time

Event Function that handles O&S' deaths (explanation + TL;DR below):
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Event ID: 11510001, Int: 0
Parameters: {} ()
      0 DISABLE Object with Entity ID: 1511950
      1 CONDITION: IF Entity ID: 01510800 is Dead --> Register AND(01)
      2 CONDITION: IF Entity ID: 01510810 is Dead --> Register AND(02)
      3 CONDITION: IF register AND(01) is TRUE --> Register OR(01)
      4 CONDITION: IF register AND(02) is TRUE --> Register OR(01)
      5 CONDITION: IF register OR(01) is TRUE --> Register MAIN
      6 SKIP 10 lines IF register AND(01) is TRUE
      7 CONDITION: IF Entity ID: 01510801 is Dead --> Register MAIN
      8 SET Event Flag ID 11510902 to ON
      9 Play Sound Effect (Sound Type: s: SFX, Sound ID: 777777777) at Entity ID: 1510801
     10 Request forced death of Entity ID: 1510811 (Yields souls: FALSE)
     11 Kill Boss (Entity ID: 1510801)
     12 SET Event Flag ID 11807100 to OFF
     13 SET Event Flag ID 11807110 to OFF
     14 SET Event Flag ID 11807120 to OFF
     15 SET Event Flag ID 11807130 to OFF
     16 SKIP 9 lines
     17 CONDITION: IF Entity ID: 01510811 is Dead --> Register MAIN
     18 SET Event Flag ID 11510903 to ON
     19 Play Sound Effect (Sound Type: s: SFX, Sound ID: 777777777) at Entity ID: 1510811
     20 Request forced death of Entity ID: 1510801 (Yields souls: FALSE)
     21 Kill Boss (Entity ID: 1510811)
     22 SET Event Flag ID 11807060 to OFF
     23 SET Event Flag ID 11807070 to OFF
     24 SET Event Flag ID 11807080 to OFF
     25 SET Event Flag ID 11807090 to OFF
     26 SET Event Flag ID 12 to ON
     27 SET Event Flag ID 120 to ON
     28 DISABLE Object with Entity ID: 1511990
     29 Delete Map SFX (Entity ID: 1511991, Deletes only root: TRUE)
     30 DISABLE Object with Entity ID: 1511992
     31 Delete Map SFX (Entity ID: 1511993, Deletes only root: TRUE)
     32 DISABLE Object with Entity ID: 1511988
     33 Delete Map SFX (Entity ID: 1511989, Deletes only root: TRUE)
     34 ENABLE Object with Entity ID: 1511950
     35 Register Bonfire (Event Flag ID: 11510920, Entity ID: 1511950, Reaction Distance: 2.000, Reaction Angle: 180.000, Initial Kindle Level: 0)
     36 DISABLE network sync.
     37 WAIT 3.000s
     38 Force Entity ID: 1511401 to play Animation ID: 0 (Loop: TRUE, Wait for completion: FALSE, Do not wait for transition: FALSE)
     39 Force Entity ID: 1511402 to play Animation ID: 0 (Loop: TRUE, Wait for completion: FALSE, Do not wait for transition: FALSE)

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Explanation:
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1. Save whether 01510800 is dead in register AND(01) (Ornstein)

2. Save whether 01510810 is dead in register AND(02) (Smough)
   (Smough's ID: https://cdn.discordapp.com/attachments/270540165099945984/309827288243896320/unknown.png)

3. Check whether one of them is true via register OR(01), once that is the case, resume the event

4. Check whether register AND(01) is TRUE (= Ornstein died and Smough SHOULD BE alive). If yes, skip ahead to the next condition. (explained in 5.)
   If register AND(01) is FALSE on the other hand (= 01510800 (aka Ornstein) is NOT dead and Smough SHOULD BE dead), then wait for 01510801's death (= super version of 01510800 (Super Ornstein)) and then finish the bossfight and start clean up. END HERE

5. Now it doesn't even check for the second register AND(02) anymore, it just assumes that now register AND(02) is false, so it assumes Smough is alive. So now it just waits for the death of 01510811 (= super version of 01510810 aka Super Smough). Once that is the case, the event finishes the bossfight and starts the cleanup. END HERE


-> TL;DR: The function checks if either Ornstein or Smough died. Is at least one of them dead, it continues. Then it checks again if Ornstein is dead. If yes, it gives you Super Smough regardless of whether Smough is alive or not. But is Ornstein alive instead it gives you Super Ornstein.

-> Conclusion: Super Smough is the default if both are killed at the same time as ONLY Ornstein's death state is explicitly checked past the first condition (whether one of the two is dead).


Fun Fact: the Chamber of Princess bonfire before Gwynevere does not exist until O&S is killed. The kill function above has a command to enable the bonfire explicitly. This is a bit weird considering you cannot reach Gwynevere without killing O&S and FROM Software usually never bothers with things that the player normally shouldn't be able to access yet.