Let's say that Cell was in Persona and made by Shuji Ikutsuki in a similar way that Dr. Gero made Cell- AKA, using gathered battle data, DNA, and Persona Attribute's of various fighter's. Why like this? Cause Persona doesn't have a lot of Capable Scientists who would be able to do smth like this and Ikutsuki has already been shown to have a ton of Projects. It's really just for convienence's sake to do it this way, especially since it would hypothetically allow for Info gathered after Ikutsuki's death, if a Computer did it for him.
- Most Likely, he would right off the bat have data from Strega and The Original SEES Member's, and potentially data from certain Anti Shadow Suppression Weapon's depending on the timeline, and maybe even Sho Minazuki. The other character's that would be incorporated into Cell would definitely depend on the point in time. I won't go over P1 and 2 stuff in any capacity since frankly I don't have knowledge on them like that.
- Likely in a similar way to how P4U has "Persona Fragment's", for the sake of this plot Cell would have characteristic's of various Persona's through this kind of a Process.
- It's possible that if Cell is made after Makoto Yuki's Inclusion into SEES, that he may have some sort of way to utilize the Wildcard or a Similar Ability; Mainly just for Plot Reason's as it would technically make him a more dangerous Foe.
- If Cell is made sometime after P3: He would likely have component's from all the afformentioned character's, as well as Makoto Yuki, Junpei Iori, Yukari Takeba, Fuuka Yamagishi (Maybe), Aigis (If he didn't already have information and Persona Data from her; Though you can't exactly get her DNA...), Potentially Ken, Potentially Koromaru, and a hard maybe on Metis (Robot, so no DNA)
- If Cell was made after the computer could gather info from the P4 Group (Most likely happening in Arena/Ultimax); Yu, Yosuke, Chie, Yukiko, Kanji, Teddie, Maybe Rise, Naoto, Tohru Adachi. In addition, it's somewhat possible that information concerning Elizabeth and Margaret might end up in him, and finally, Labrys if her data wasn't already in there.
- I don't believe there is any way for Cell to have data from the P5 Group incorporated into him, because of how distanced they are from the previous two group's, only crossing over in dream's and other weird scenario's.
- Due to Ikutsuki's particular obsession's, I believe the Arcana Shadow's would be the method's Cell could use to gain a Perfect Form. Erebus might also be a Suitable Substitute.
With this all in mind, I will give a few scenario's dependent on when Cell is made.
Scenario One: Cell is Made Early
Cell is made Early- Either before Persona 3 or in the very early stages of it. Cell would have access to The Information/DNA/Persona Abilities of Mitsuru, Akihiko, Shinjiro, Takaya, Jin, Chidori, Potentially Sho, and potentially the Battle Info and Persona Abilities of various ASSW's.
While this Cell is the Weakest of the possible variation's, he has a few things going for him. For one, this is the only timeframe where the Arcana Shadow's are around, which is good for him as it mean's it will be easiest to reach his perfection here. In addition, Shuji Ikutsuki is alive- Meaning Ikutsuki could likely help Cell. Though, knowing Ikutsuki, he likely only made Cell in order to be a easy catalyst for the Fall, which might not be aligned with Cell's own Personal Interest's Per say. Still, having a Inside man who could potentially throw SEES off for him would be beneficial.
Now, I will say this; If Cell is made before P3, and also manages to Absorb the Magician Shadow, then it's already over imo. Makoto Yuki would most likely never awaken his Persona, or at least ends up awakening it in a different situation at a later time, and from there it's hard to really gauge what SEES does, since it's literally just, Mitsuru, Akihiko, and Yukari at that point. They might bring Junpei on like in canon, but even still, Cell has a drastic headstart against all the other player's, while our titular Hero's are falling behind. If Cell can manage to keep absorbing Shadow's, not only will SEES's growth be stunted, but Cell will be able to create a gap in power that may become nigh impossible to surpass. The most likely outcome is that Cell Absorb's all the Arcana Shadow's (Minus Death), Kill's Ikutsuki and SEES easily, and is allowed to run amok as he pleases. Strega may even decide to work for him, all things considered- Or they die too.
If Cell comes into play after Makoto has awoken to his Persona though, things get interesting. We would have a sort of 3 way struggle- SEES looking to kill all the Shadow's, Cell looking to absorb them, and Strega looking to prevent both for their own reason's. I could easily see a scenario where P3 play's out in a way where SEES manages to kill some Arcana Shadow's, but Cell manages to absorb other's (for example; while SEES manages to destroy Arcana Hierophant, Cell might reach Lovers before they can. Or maybe, because SEES are so worked up over Shinji not being around, Cell reaches Strength and Fortune first, etc.). Depending on how bad the situation get's, SEES might recruit people like Shinjiro a little earlier than in Canon proper due to the threat.
In his Freetime, Cell may even remain in Tartarus himself, training and growing stronger; if He encountered Fuuka while she was in tartarus, that could spell Disaster for SEES, but that seems like a specific situation. If that happen's though, SEES may eventually fall behind.
It may eventually play out where Cell has absorbed a fair number of Arcana Shadow's, as many as he can, and then decide's to host his Cell Game's during the Dark Hour/In Tartarus. Strega almost definitely wouldn't want to get directly involved at that point- As for SEES, I could see them taking Cell on in a final bout of sorts. Cell would be fairly strong, but Persona Character's are known for getting strong quick themselves- Eventually it would culminate in SEES sending in Makoto Yuki to battle Cell directly.
A fairly interesting comparison could be made- How Cell has a Reason to Live that's sort of Programmed into his being, while Makoto found a Reason to live for other's, or smth. Either way, due to Makoto Yuki's Wildcard and his ability to use Fusion Spell's, among other things, I can see him killing Cell. P3 would likely play out similarly as usual afterwards, though maybe with one or two changes on who's alive or dead.
If, somehow, SEES manages to kill all the Shadow's before Cell could even absorb them, he would likely initially become Manic and rageful at the fact that he couldn't absorb any of them; He would still train and grow stronger, but until the arrival of Ryoji Mochizuki, aka Arcana Death, Cell would be much worse off.
Once Ryoji is on the scene though, it's possible Cell will go after him and try to absorb him. I see one of 2 things happening from here.
1, Cell Manages to Catch Ryoji off guard and Absorb him. From there, he would likely become the final boss- Gaining a drastically noticable increase in power from absorbing, well, Death- And not to mention Ryoji being Nyx's Avatar. A Endgame SEES might still be able to beat him, but it would be difficult.
2, Cell fail's. Ryoji becomes the Nyx Avatar and the events of the final gameplay day of P3 Occur. Cell may still appear, desiring to attempt to absorb Ryoji, which may lead to a fight with him prior, maybe right before the Strega Fight's. I don't see Cell teaming with anyone though.
One interesting note is that Ikutsuki might attempt to get Cell to help him on the night he plans on Executing SEES, but Cell may very well just let him die tbh.
Scenario Two: Cell is made Post Persona 3
Cell is made after Nyx is defeated. He would have access to the aforementioned info, in addition to info from the rest of SEES's member's.
Cell would have more power and information, but he wouldn't have access to the Arcana Shadow's anymore. For the sake of the arguement, Erebus can make a suitable replacement for whatever reason.
Cell would likely be immensely distraught over not having the opportunity to become Perfect, but if this occur's during The Answer, then Cell may have a shot (Though he wouldn't have access to info on Metis). If he can somehow become involved in those events and follow SEES closely. It would likely result in Erebus appearing and Cell trying to take a massive gamble. He either fails, which... Leads to nothing, or succeed's.
If he did Succeed, and attained Perfection or a similar enough form, it would just be SEES vs Cell again but with Aigis being the MVP. Maybe a correlation can be made between the two's Purposes's and Personal Reason's for living, since both were artificially made, but that's beside's the point.
Now, if he was involved in Persona 4, that could be interesting. Most likely, when Cell initially is made and catches up on the situation, he follow's Sho Minazuki to Inaba. Seeing the events involving Yu and Co and the God's they face, Cell may hatch a bizzare plan of trying to absorb some of these Godly beings. It wouldn't let him reach perfection, but it would make him much stronger.
In the meantime, he might also become a smalltime Myth in Inaba, absorbing random people like Cell does in DBZ. It could be a unique situation, though I frankly see the IT defeating Cell before much of anything happen's; unlike P3 Cell is missing chances to get significantly stronger with little contest.
If Cell get's involved in the P4 Arena or Ultimax events instead, he likely pursue's a way to find a replacement for the Arcana Shadow's or just powerful people to absorb, but he eventually runs into Yu, Labrys, Aigis, Adachi, Sho, or someone else and get's put down/defeated.
Scenario Three: Cell is made after P4/P4U
Cell is made after Sho Minazuki and Kagutsuchi are dealt with. He has all the abilities afforementioned, the IT's DNA and Abilities, Adachi's, Elizabeth and Margaret's, and he has Labrys's Data.
In this scenario, Cell has his strongest base power, but no option's; The most likely scenario is that he search's far and wide for something- Anything- And kill's people along the way. The Shadow Operative's find him, and eliminate him.
Tbh, the issue with cell as I wrote him here, after the events of Persona 3, there isn't much for him to do. The events of all the other games tend to be too different, and unlike P3 it's hard to believe he can do anything before the Main Team can. He can't even get involved in P5 without insane luck either, so I won't even go over that. Then again, there could be other way's to incorporate him that lead to different outcome's- That's how this works, I suppose. I just got bored and decided to type this up... Oh- And this is in no way a accurate reflection of Persona Powerscaling. This is more reliant on Narrative ig.
