This is good
Now i'm gonna hack tommorow. Things it could use tho are:
-Foot pick-ups instead of just picking it up with your hands (you could make bar where you press a button like on golf games for the power of the swing and the higher you hit on the bar the higher you pop the sack up; obviously getting it as high as possible is preferred and you make more points the higher it is)
-High score keeper- it would be way more addicting if i knew when i was beating out my scores.
Pretty awesome though and great job (I gave sound a zero because i was drowning out the music with my own)