you obviously figured out level 38, any hints?

you have to do something like the guy on a mug

like what? I know who it is, but not sure where to go from there...

Finally figured it out myself, but the fault was not in my logic.

Tip 1 Vs lbh unir svtherq bhg jub gur punenpgre vf, lbh ner ba evtug genpx.

Tip 2 Vs lbh ner hfvat Sversbk, lbh zvtug jnag gb gel hfvat pyrna Puebzr vafgnyy sbe guvf bar.

Tip 3 Hfr gur jro qrirybcre gbbyf, uvagrq ol "Vafcrpg" ryrzrag. V tbg guvf vzzrqvngryyl, ohg sbe fbzr ernfba V qvqa'g svaq jung V arrqrq hfvat Sversbk naq jnf fghpx sbe qnlf.

ROT13: v nz fghpx urer nf jryy. nccneragyl vg ybbxf irel fvzcyr. jung v xabj vf gung vg vf cbvagvat gb fbzr bgure cntr. Ohg v nz fgvyy hanoyr gb svther bhg gb juvpu cntr vg vf cbvagvat. Vs lbh trg nal uvag, qb yrg zr xabj nf jryy.

Gur guvat zragvbarq vf npprffrq gur hfhny vagrearg jnl bs npprffvat guvatf, qba'g bireguvax vg. V fghzoyrq vagb vg ol nppvqrag juvyr ybbxvat vg hc. V tbg gb n cbvag jurer V unir cerggl zhpu fbyirq gur chmmyr naq tbggra n erfhyg gung V thrff fubhyq or gur nafjre, ohg vg vf abg npprcgrq...

Gung jnf zl svefg nggrzcg. Ohg vg qvq abg jbex bhg. V jnf terrgrq ol cntr abg sbhaq. V qba'g xabj jung ryfr V nz zvffvat.

Fvzcyl pbcl gur erfhyg sebz gur zragvbarq guvat gb gur nqqerff one naq nqq qbgpbz gb vg abguvat ryfr be vg qbrfag jbex.

BZT...vg jnf gung fvzcyr. Rkprcg guvf bar, V gevrq rirelguvat: V gevrq qbgvb, qbgpb, qbgam, qbgznbev, qbgznbevqbgpbz, qbgpbzqbgam, qbgpbzqbghx, qbgpbz naq qbgpb jvgu gur vavgvnyf bs nyy gur pbhagevrf gung ner cneg bs angb.