this game is fu***ng long
It took me more than hour to get 67th level on hardcore and I'm still playing this with cash turrets all over the ceilings. How many levels are there? I hope less then 100 because the flash player started to lagg.
About that lag, you should optimize the graphics so when an enemy, bullet or the cash text is off-screen the flash player shouldn't render it, it'll make me possible to run freely on the end of stage.
Another thing, is in-game background a trace of bitmap? If so, I hope you've made id 'cache as bitmap' or else that will increase the lagg to worse-computer-owners.
Gameplay: the beginning was pretty boring, I could run the game and browse the internet at the same time not worrying about it... Until the level 35th or so. Bosses should be tougher.
Now it's level 68, lots of cash guns, no more ceiling space and uber machine gun... Waiting to the end.