Excellent little game, I had a bunch of fun with this over the last few days. Minor gripes with major spoilers follow (rot13):
V nz bayl fyvtugyl naablrq gung gurer'f ab tvnag vfynaq va gur hccre yrsg gb rkcyber onfrq ba gur "zvavznc vfynaq". Nyfb sehfgengrq gung gurer ner neebjf ba gur INCBE gnoyrg vfynaq gung qbrfa'g frrz gb pbeerfcbaq gb nalguvat?