I love that preloader...
I liked this game, and it seemed fairly amusing. Here's what i think you should change though:
1) I thought the controls were infantile. There are different ways to make your char move, such as using an actionscript to make left and right rotate the char, and then use front to move, i think that would have made the game harder.
2) MOAR LEVELS!!
3)Different whistles
4)i think that as a garbage whistle, for every hundered whistles you kill, you should go up a whistle level, or something like that.