Made to the last (i guess) level and that's it. I'm not seeing, and I solved the level referenced in the hint. Any other hints?
Honestly that hint is pretty vague so here's a second hint (rot13): Gur fbyhgvba fubhyq vaibyir chggvat obgu neebjf ng n snyyvat fgngr.
Also a more obvious hint (rot13): Gel gb chg obgu checyr neebjf ng gurve tbny jvgubhg univat nalguvat fhccbegvat gurz sebz orybj.