The goal of the game "Frog" is the development of children's hearing after cochlear implantation and hearing aids when listening to non-voice mid-high-frequency sounds. The game can also be used to diagnose hearing. The main technology used in the game is the conditioned-reflex reaction of the child to the sound heard. The game is useful for children of early, preschool and primary school age at the initial stage of rehabilitation. Help the frog catch all the mosquitoes. Click on the mosquito when you hear the sound.