Update 2

Two notable things in this update:

1. There is now exit confirmation dialog, and you can press ESC in the home screen to exit the game.
   
2. The home screen level (level 0) is changed a bit. In the beginning, the platform path span is more narrow and it gradually increases until platform 50. This way it should be easier for beginners to learn the game mechanics and score some points. (Your feedback is welcome)
   

Hopefully, more bugs were fixed than created. ːsteamfacepalmː