Update v0.7a

Big update. I've added username system (you can choose any, there is no point in securing them). Usernames are used to save your highscore if you will become the best. Now there is only level highscore but there will be more. 

New game! Enter the first menu in the game and click play button below the Playground sign. Your time score in it divided by two will be added to your in-game money account (basically money grinder)! Unfortunately every time you lose you have to launch the app again in order to play again. I am working on fixing it.