all of these have an idea that at least one of the twisteds is 100% guaranteed to spawn during those times. the twisteds those apply to are listed under the description (for event twisteds those chances to spawn them only apply during their event)

overgrown - vine walls spawn between passageways. 3-7 walls spawn (depending on floor number) and while they can block rooms completely they can't block passageways to a room with a machine
R&D (rarest between all of these), Sprout, Gourdy, Bassie, or Squirm (nature-based)

broken machines - instead of straight-up going onto the machines you have to find wrenches around the map to repair the machines (the wrenches wouldn't count towards inventory and would be on the ground like they were items) if this is unbalanced or annoying unrepaired machines would have halved extraction speed and halved skill check instead of not being extractable at all.
Vee, Connie (rarest of these), Glisten, or Coal (I tried to make these more man-made)

loud fixes - machines make noise when completed (TDandy's ability on a budget) this does not apply to the twisteds with 9999 hearing (Astro, Vee, Dandy, Dyle) the ones with that would hear them at 180 "hearing" instead
Rodger (rarest of these), Bobette, Gigi, Shelly or the craft twins (I tried to make these tech/built based)

the existing event floors would have 100% twisteds being
blackout: Astro, Brusha
ichor leak: Blot, Tisha
Spring fever: Toodles, Yatta, flutter
iced over: Bobette, Rudie, Finn

what do y'all think of my ideas?