http://tonakai.aki.gs/interactive/out_01e.html
This one is one of those rare titles, and yet it is of the most
difficult I have seen.
The puzzles are thought provoking and cleverly designed, and at
least one requires you to listen; however, the same puzzle may be
solved by other means if hearing is not your strong suit. It's an
excellent game, though not an easy game by any means.
Caution: it is possible to die in
this game so be careful lest you be forced to restart from the
beginning. Also, the game makes excellent use of audio, so be aware
and use headphones if necessary.
