I had a lot of fun playing it, it is impressive considering you had very little game dev experience! It took me while to figure out how the wasd commands worked, even after reading your description, I think adding a tutorial phase or pop up messages ("memorize the sequence", "your turn!") would help! Also as someone mentionned, at some points images stopped matching in my case too. But besides those bugs, I had fun and see a lot of potential! :D