Thanks for the idea! I really want to make the recognition easier (I saw it is needed because my parents have difficulties while the play-test). I don't know if I will make in this way that you suggested because of the puzzles, I thought to do vertical and horizontal arrows inside the squares(X and Y). What do you think is better?

Thank you for the feedback! :).  Yes, I know a music would fit very well in this game, but it's my first jam so I am learning and I don't had too much time to learn  programming and make a song (what I don't have any idea how to do). I wanted to enter this jam just to learn so the feedback is very important to me, thanks again :)