who knows memory game... you have 18 cards [count them] and you find the matching pairs, Once you're finished, you will know how long you took to [in seconds] to finish the game. Here are some rules: If you see a missing slot for the cards, click the green flag again...and again...[if you need so] Don't click the card too much as if it can decrease the size by 6 and the entire game will get mixed up and destroyed.
This is just my first matching game I made, so don't say "that it's too easy" or anything similar from that