It's a simple game that teaches preschool children psychomotor and basic immunology

For children up to 5 years. This is a game where you have to shoot balls of the same color, which depicts the immune complex (especially complement) to contact with the balls then burst (germs) of the same color with the color matching (antigen-antibody). The more balls burst, the more points you pick up your child and the more he will enjoy the victory.

The game develops fine motor skills, color discrimination, reaction speed and visual-spatial intelligence, as well as the concept of immunity.

https://ru.wikipedia.org/wiki/Антитела

https://ru.wikipedia.org/wiki/Естественные_киллеры

https://ru.wikipedia.org/wiki/Система_комплемента