Hear the score multiplier grow

I've updated the game to use a Shepard scale when the score multiplier changes, this makes breaking bricks to increase the score multiplier more exciting, and loosing your combo more visceral. In the same vein, the ball now gets sparky when the score multiplier grows.

The game is on the play store ! Nobody cares and it doesn't even show in search, but it's a first for me :) I downloaded a signed apk from the play console to make it a bit easier to install, play protect should complain less about such apk. 

Next step is to introduce an unlock mechanic. Basically start the game very simple, and every time you score some new perk or feature will unlock. This is to avoid overwhelming people with rules all at once.