Very nice game, can be very addictive. Love how the levels get harder and harder but getting 3 sacks out of 3 is way too hard. With the first testing you already lose a lot of score and it is hard to get that 3/3 after a while, not impossible but hard. Maybe the score should fall after the 'test-throw'.
Like the cartoonish robbers' looks, I could imagine a bigger game with them (Like a 4 man co-op bank-robber one.). Audio is okay, I had no problem with it - on the right level, not too loud or low - The basic background tune could be more varied (I mean more pieces of music.) but it's fine.
Overally, you've got a badass game over there and its quite awesome !
Keep it up, hope you get the approval :)