Hello. I think your game could be good if maybe you improve the use of variables (because sometimes seems like the game is saving my past fail), and it is neccesary improve the velocity of the coffee and the acceleration of the player. Also, i recommend you that practice some of pixel art (with software like piskel, pixelorama or aseprite) or do simple drawings in svg. (with software like Inkscape). And I think you can improve if you want. Just work and practice. Bye!