Train memory and attention

Where are these keys ?? I just saw them! Familiar with the situation and ant to avoid this? Then our application is for you! Just play 5-10 minutes a day and the results will pleasantly surprise you. Our application will help you:
* train memory
* increase observation
* improve concentration

The basis of the game is the following principle: due to short-term memory, peripheral vision and increased concentration of attention, you need to correctly indicate the object that has just appeared among the others. At the beginning, when there are not many items, it seems very simple. But after the tenth subject you already begin to doubt what was added ...