Déčko Mozkovna is an Android game that offers various challenging tests that will stimulate your brain cells. The game is developed by Česká televize and is available for free.

The game consists of multiple tests that will challenge your memory, reaction time, and problem-solving skills. As you progress through the game, the difficulty level increases, and you will need to stay focused to keep up with the increasing speed. The game's interface is user-friendly and easy to navigate, making it accessible to all age groups.

Déčko Mozkovna is an excellent game for anyone who wants to improve their cognitive skills while having fun. The game is free to download and play, making it accessible to everyone. However, the game does contain ads, which can be a bit distracting at times. Overall, if you are looking for a fun and challenging game to stimulate your brain cells, Déčko Mozkovna is an excellent choice.