I can confirm there's a solution! Nice tricky puzzle. :)
There's no level select so I can't go back to that level. I believe it worked this way: (rot13) (hint 1) trg terra-erq naq oyhr ba gur yrsg, gura fjvgpu gb nabgure trz (hint 2) lbh fubhyq fjvgpu gb terra ba obggbz evtug, gura ergevrir gur svefg lryybj-oyhr ba gbc