Cool game you build there in this short amount of time. I like that you don't loose automatically when you press the wrong button once but can make it up by not pressing the button the next time.
I would agree with the other comment that you could add some more variables to the game. Maybe add more sweets you need to count? You could also make them not only fall down but maybe have them wander around the screen and hide under other objects and every time they apear you have to count them.
Also I would add that the UI at the end was (at least for me) counterintuitive. I was staring at the screen for quite some time to realize that I won. Maybe you could add some text or something that clearly indicates if you won or not?