Fun little game. The last room was weirdly easy, though: V chfurq nyy gur oybpxf va n fgenvtug yvar gb gur yrsg naq whfg jnyxrq npebff. (Use rot13 to decode.) Is this cheese?
I couldn't find a better hard level, and when I played the game again I realized the level was literally impossible before, so I changed it.