Let’s Escape is a new Japanese Room Escape game released yesterday. This game is only available in Japanese, but the language barrier in this game is not a problem at all.
You find yourself in a small room and you will have to find several keys and a lot of colored codes before you can get out of here. The game is nicely done, but some spots are difficult to find, even with the help of the tab key!
Overall, another interesting Room Escape game from the Land of the Rising Sun that should keep you busy for a while!
Update: walkthrough in comment #4 (thanks, Chichi!)