Just a quick update to add completeness to the prototype: sound effects. These are not the final ones but will do for a start. And the desperately needed "tap to start" behaviour. 

Besides the sounds some minor tweaks in the color sheme and game play. Now you lose a point if you miss to catch square.

I'm pretty amazed how fast this prototype came together and that it's actually quite playable as is. But there is no doubt that it's still a long way to go before it can be called a finished product.