I will definitely keep the visual feedback in mind in the next update.
You can try to get it from Google play, it is also free this month. You might find the control in mobile a bit more comfortable than in PC. All the best :)
Thanks for playing and the feedback. Actually, I wanted full involvement and concentration of the player. Once you get the hang of the control, you will get the real fun. I will try to add different difficulty options in the future release though. Happy playing ;)