Thank you!
It turns out I was pretty close. Some conformation I was on the right track helped.
This is a very good puzzle game.
I want to finish this game, but the last level I'm stuck at is level 50.
What I figured out in rot13:
Lbh arrq gb chfu n cbegny pbagnvavat 3 urnegf va nabgure cbegny. Lbh pna'g chfu obgu n cbegny evtug naq n cbegny qbja, orpnhfr gura lbh pna'g ernpu gur ybpxf. V'z cerggl fher lbh unir gb chg n cbegny va cbegny va cbegny hagvy lbh pna unir rabhtu urnegf. Gur ceboyrz vf gung gur gbc yrsg 3 ol 3 nern vf gbb fznyy gb znarhire gur urnegf.
Thanks in advance.