there's a sneaky trick to this one, haha. you're close!
let's say your third bullet is wrong and see if that's enough of a hint. if not, lmk
Viewing post in Give Up the Ghost: a puzzle checklist comments
OHHHHHHHHHHHH I FIGURED IT OUT
turns out you need to [rot 13] (reveal the hints in order, for anyone who is stuck on this level)
-lbh arrq n k sebz gur cnfg naq shgher
-gur qhcyvpngbef pbcl gur cerfrag fgngr bs jungrire vf vafvqr gur cbegny
-gur k sebz gur cnfg vf uneq gb trg hayrff lbh unir gur gevpx
-cercnengvbaf, qba'g fghss gur k va gur cbegny naq qhcyvpngr
-lbh unir gb trg gur k bhg bs gur jnl (naq ernql gb fraq vagb gur hccre evtug cbegny) jvgubhg fgrccvat ba gur pehzoyr oybpxf; guvf vf qbar orsber qhcyvpngvat
-vs lbh tb guebhtu gur cbegny lbh jvyy chfu gur k va n cynpr jurer lbh unir gb hfr gur pehzoyr oybpxf; guhf, lbh pna'g qb gung. vf gurer nabgure zrgubq?
-ubj jvyy qhcyvpngvat lbhefrys nsgre fghssvat gur k va gur cbegny uryc?
thank you so much for your help!
here's what i found out about level 25:
-gurer vf bayl bar jnl lbh pna pebff gb gur bgure fvqr, fb vs lbh jnag gb qbhoyr onpx, lbh arrq gb haybpx gur 2 "4" ybpxf ng gur obggbz
-zl ceboyrz vf gung vs v haybpx 2 bs gur ybpxf, gur ynfg ybpx vf vzcbffvoyr gb ernpu (v'yy unir gb gnxr nabgure 4 sebz gur arkg cbegny ohg gung arrqf 2 4f gb oevat onpx)
-guvf vf whfg n thrff, ohg qb v arrq gb hfr bar bs gur qvzrafvbaf gb fgber gur 4f? (naq v guvax gurer vf ab cbegny chfuvat urer)
-v guvax v znl or noyr gb chfu gur ahzore oybpxf ol sbezvat n 10 4 10... punva fb v qba'g unir gb fgrc ba gur pehzoyr oybpxf
it's definitely the hardest level so far