Walk into the water…
Okay, I walked through the water (the only body of water I could think of), but it didn't work. But I did somehow wind up with a locked in jessica variant that I never passed a mirror with (was returned to MC after elevator). Does it only work if you cleanse the main body directly? Cause some of these transformation timers are just too long to wait out, and it's inconsistent. purple eye could clear in less than 5 minutes in most 3 cycles, then randomly refuse to clear suddenly despite how rare that variant seems to be.
Edit: Tried to verify the concept by doing a cycle where I only cleansed then drink coffee, then scanned in the Lab. Still getting that 'Unknown Organism Detected' message.
You can access the Lab without going through the scanner when entering from the Manor by going through the sludge. That’s what I meant. The scanner will detect all parasite including Venus, Squidrabbit and Unwidow. It will also detect if you’ve interacted with the futas, though that should reset when waking up. C-Alpha, or even the decontamiantion spray should remove all of those.
The red ghost has a randomized appearance each time. There are no variants. The transformation lasts for 7200 frames(120 seconds at base framerate). If the player is doing something that would conflict with transformation (i.e in an animation or in a menu) the timers is delayed by about 30 seconds. The transformation should always disappear when you enter Jessica’s room or when you wake up.
The mirror transformation is permanent.
As for the lab, C-Alpha I recall I used it once before while infected by D-Bug (not sure of correct name) and it was not removed then. However, the decon room I have confirmed removes the 'unknown' dna source (Venus). Difficult to actually get to though...
I tried intentional modifications to both possible lab starts, ultimately both missed the mark in granting access to decon chamber in some way. After careful evaluation of everything and hints you have provided, I realized there was one other way I had already discovered brought me into the decon room other than the two main lab starts, that way was the only way that worked with me being infected with the Venus.
Now with Jessica, based on what you just described I have something to report that does not align (functioning not as described). It seems to be rng-like that I’ve been experiencing a larger number of cycles where I never pass any mirrors but Long after accessing Jessica’s room the transformation persists. One occasion I had walked around in circles for half an hour before getting tired of waiting. That was with a solid red-eyed variant, and it happens like that with a high lvl of consistency to me, so I’ve started just resetting when I roll one.
I believe I discovered a way to prevent the practically permanent non-mirror Jessica transformation. Until the cause is understood and solved, I noticed that when I obtained Jessica transformation, if I approach Jessica's bedroom door but did not actually enter, I could continue with other actions and the transformations would ends pretty consistently around 7200 frames like you said. Only 4 tests have been done by me, but hopefully this helps the others get past that nuisance for the time being.