I got to say that I appreciated the pixel art and nice animation that you made and it reminds of a classic game that I played on PC. Here are a few suggestions that I manage to draw up. First include the tutorial menu and quit the game when pause and within the main menu. Next does the game include an attack button, but if it does not then have it work with the space bar. Finally, change the movement to the arrow keys on the keyboard. I do hope these suggestions would help your game.