I created and shared the original game for free, but unfortunately the production money is running dry, so I created a paid version.
It would help me out a lot if you could support me by buying this game! Thanks!
Please enter the trial pass [ hirake-goma ] in the screen below, and you can play this game partially.
Let's go to this site, if you would like purchase the rest of the game.
For your information,
[Black Box] won first prize among the "Best of 2012 award" in the Point-and-Click Puzzle category of Jayisgames.com.
Also, it was ranked 4th among the 2012 free puzzle game in IndieGames.com.