Memory Cards Game

1. Choose between normal mode or hard mode. Your allotted time will be determined by the number of cards and difficulty you select.
2. The game consists of a set of cards with matching pairs placed face down.
3. Flip over a card to reveal it and attempt to find its matching pair in the next turn.
4. If the cards match, they will stay revealed for the entire game; if not, both cards are turned face down again.
5. Earn points for each pair matched within the time limit. If the time runs out, all cards will be revealed.
6. The game concludes when you successfully match all pairs or when the time runs out.