Special exercises monitor the player concentration and analyze his attention when some distraction are created on purpose inside the Evolver.

Tests are made to understand the limit of perception of each player. Each exercise quantify reactiveness, as well as reaction speed.

Targets have different levels of difficulty, that’s why they are scored in different ways, measuring the effectiveness of making a decision.
Following ball control, Evolver can tell decision speed, as well as if the player hesitate or not, analyzing determination.