It helps to develop imagination, memory, and trains the eye muscles.

* Infinity. Endless repetitive images.
* Shifters. We analyze all the external features of the image, remember the characteristics, and try to visually reverse the image.
* Hypnosis. Three-dimensional images.
* Paintings. We look at the picture and read the contours, and imagine different images.

App Features:
* Control via the sound buttons
less-choice,
more-output,
* Control via swipe up, down selection, double tap exit.