I found a way to get rid of the squid suit.
In the level 3 lab, there's another one of those doors with the hand lock.
You've surely unlocked the other one, use that(wrench, saw)
Yeah. I already completed both routes. Explained the one to help someone out on a different thread. Each usually ends in me trying to use the spatial rift (which btw has pre-requisites, and I learned that firmware compatibility apparently gets randomized like a passcode at the start of a new save).
I also just brute forced my way through to the Outpost from the spacial rift a second time. I now have knowledge of the firmware for Site Zeta, so that'll be next. Afterwards I should have access to the firmware needed for port to Manor spawn site. Already accessed lvl4 access card and obtained the lvl4 access password for future use, less than an hour after completing Yuri's nightmare event.
I've been re-rolling Jessica transformations so much because of the mimic chest rng. I think I'm onto a pattern... Let me know if you notice this as well while you play. Purple eyes seems to be a relatively short timer, magenta seems to last about twice as long, but red seems to just refuse to go away, while grey eye Jessica seems to only show her face once but the timer is like the red eyed variant.
"easy" might be relative here. It isn't if you don't already know about it. I've done everything I can think of in the mansion, and can't figure out how to progress further, let alone undo that transformation. I've played for a minimum of 20 hours, possibly as much as 30.
At this point I'm just going to start a new save because while it might technically be possible to continue this playthrough, for all practical purposes, I've spent over a day trying to figure out how to get rid of it, and can't. I like to believe that I'm relatively intelligent, and that my experience would be at least somewhat representational of what most new players would experience. Frankly, if you get infested with the squidrabbit before knowing how to get rid of it, it's better and easier to restart the game then try to bruteforce some obscure method the game hasn't even hinted at. And ALL progress I can think of is locked behind getting rid of it.
Edit: to be clear, this is my first playthrough. I was infested Day 1, nearly immediately without exploring the other side of the lab. (I was able to run from the other creatures, even past them, so why not this thing? I didn't expect it to essentially game-endingly difficult to get rid of, let alone even semi-permanent.)