Find Green Batteries

Find Green Batteries is a common memory game!
The game consists of 35 battery cards in 7 rows and 5 columns. You need to remember the positions of all green batteries within 3 seconds of the countdown at the beginning of the game. Then all cards are blocked. Click on the cards within 20 seconds of the countdown. The game ends when you click on the card with the blue battery. Find all the green batteries and enter the next level. As the number of levels increases, the number of green batteries also increases. The game countdown, level, and number of green batteries remaining are displayed at the top of the screen.