Welcome to Hero Mask Memory, the only game where your brain gets a workout and your fingers get a workout too—because let’s face it, flipping tiles is basically cardio! It’s a free online game that tests your memory, because who needs to remember where you left your keys when you can remember where all the hero masks are hiding?

Your mission, should you choose to accept it (and you have no choice because it’s free), is to flip tiles like a pancake chef on a caffeine high and find matching pairs. Yes, you heard it right, matching pairs—like socks, but way cooler! There are 4 levels of increasing difficulty, so be prepared to channel your inner Sherlock Holmes.

Just click or tap like a mad person on those squares, and try not to think about how many moves it takes you—that’s just a number, like your age, which we all know is just a state of mind! So, concentrate, grab your snack, and enjoy flipping those tiles like they owe you money!