- Chara gets a new key for when they have possessed Frisk in Genocide and an Unknown in intelligence
I'm mostly okay with this. There is some vagueness around how exactly you're supposed to interpret the presence of Chara in the Genocide route, but the interpretation provided in the OP is a more than reasonable one given the evidence. Considering that we have to make a choice how to interpret it one way or the other, this should be fine.
- Class 25 LS becomes Class 10, with Photoshop Flowey being >x4 that and Asriel being "possibly Infinite"
Reduction of Class 25 LS down to Class 10 seems fine.
Photoshop Flowey... I'm contentious on the fact that, depending on the mechanism, restraining 4 people wouldn't necessarily need 4x the lifting strength of restraining 1 person. However, as an estimate, I don't particularly mind it - one way or the other, Photoshop Flowey's lifting strength is clearly substantially above each of the other characters. Where my problem comes from is that, given the rough and intangible nature of exactly how much extra force it would take to restrain all 4 of them in that situation, we don't have a good precedent for using an exact multiplier; increasing Photoshop Flowey's lifting strength to an exact statistic by multiplying from the other character's lifting strengths could therefore be considered akin to calc stacking. I'd personally prefer if Photoshop Flowey's lifting strength was listed as "At least Class 10, likely higher", or something along those lines.
Asriel being given "possibly Infinite" lifting strength seems like a bit of a stretch to me. I do see the logic behind it, but it's a huge inference; we see on one occasion that an increase in power co-occurs with an increase in lifting strength, yes, but how do we know that this pattern would be maintained? How do we know that Flowey further increasing his power will indefinitely increase his lifting strength? I would be okay with "possibly Infinite" lifting strength if this was a consistently demonstrated pattern, but as it stands, we only have one notable example. One instance of co-occurrence is not a pattern.
Seems fine.
- Flowey gets more scans to him lacking a SOUL / The Player gets more info about their existence as a note
Nothing wrong with just adding more evidence for what is already there.
- Monsters get a physiology page
This seems warranted. The unique physiology of monsters in Undertale is an important point in the plot, and one that could theoretically influence versus matches. I'm almost surprised we don't already have one.
- Frisk gets a "2-B via TRUE RESET"
This is, to be clear, environmental destruction? I don't see this as scaling to Frisk's stats, but it is a relevant feat nonetheless.
- DETERMINATION becomes a layered hax which is a combo between Time Travel/Rewind and Power Null
The controversial one, apparently. Frankly, this is kind of a weird situation, and I don't mind how we choose to phrase this on the profiles; in the end, it doesn't result in a whole lot of differences for indexing or for versus matches. However, if it were up to me, I do not think DT warrants being listed as a form of Power Null. Simply put, the user of DT is not "power nulling" anyone; what we perceive as power null is just an indirect consequence of the fact that only one person can use the powers that come with DT at a time. They are not doing anything that causes other people's powers to be nulled, they are just using the powers themselves that other people would've otherwise had. To give a rough analogy; if we think of DETERMINATION as "bids" on a product, where the person who makes the highest bid gets the product, then the person who makes the highest bid has done nothing to every other bidder. They just got the product, and the consequence of that is that other people don't get to have the product. I don't see this kind of indirect claim on power as meaningful to list as Power Null, and I further don't see how it would be relevant outside of the very specific context that Undertale exists in.
As mentioned, though, I don't particularly mind how we choose to acknowledge this on the profiles. I don't believe it warrants convoluted layered hax, and I don't believe indirect, circumstantial consequences of a power should be listed as a part of that power. But as long as we're listing it in a way that enables it to be accurately represented in the context of versus matches, I don't mind how we choose to describe it.