PSP software (without box&manual) Infinite Corridor

Product description ※Please note that product information is not in full comprehensive meaning because of the machine translation.

A world governed by a law that overthrows your common sense. That is the Infinite Corridor. A puzzle game with the theme of illusion.
Let's escape from this maze by leading "Cast", the person who moves forward, into the human image "Echo". Move your viewpoint and use the illusion. The world changes depending on the angle of view. There is a way.
There are three rules in this game : Solo, Pair, and Asers.
Solo is a game that takes advantage of five mysterious phenomena and looks at the corridor from 360 degrees and finds a path through which a moving person (Cast) can contact with the shadow (Echo). If the cast can contact all the echoes scattered in the corridor, it can escape from the mysterious world.
Pair is a game that takes advantage of five mysterious phenomena and sees the corridor from all directions, and finds a path through which a moving person (Cast) can contact with the shadow (Echo). If the cast can contact with all the echoes scattered in the corridor, it can escape from the mysterious world.
Pair is a game with no echo. Cast is divided into two colors, black and white, goes around the corridor. When the same color comes in contact with each other, a new gray cast is born. If it comes in contact with all the echoes scattered in the corridor, it will clear the stage. It is required to match each pair of casts.
In Others, the basic rules are the same as Solo, but black cast is wandering around the corridor as a presence that blocks the whereabouts of the cast. It is necessary to make contact with Echo without contacting black cast.
Corridor creation. Let's make a mysterious space!
You can make your own corridor by placing various parts in