Thanks for the feedback! We’re actually planning on not only updating this release of the game to be more polished, but also releasing a full version of the game with lots more levels and mechanics!
We actually did change the direction chevrons to arrows and we think it makes it easier to tell what will happen at a glance, so stay tuned for the update that fixes that! We’re working on implementing some good sound effects that will enhance the feel of the game, as that has been easily the most common suggestion we’ve received.
61 is a good score! Glad you enjoyed the game :)