Heads up to the author, the game is unplayable on lower end machines. Game freezes up on my netbook due to to much CPU usage of the game. Consider adding in quality settings that effect things beyond the quality of vector rendering (right-click > quality >low had no effect, still froze up. If you're using any movie clips that have post rendering done to them (adjusting hue/sat/dropshadow/etc), have an option to disable them. Anything that is being blurred in real time by flash is a huge framerate killer on even decent machines, but on weak ones it makes the swf unplayable. You can still maintain the same look by prerendering it. You'd need to create a 24-bit transparent .png file of the effect, rather than having flash just generate it. then overlay the png as just a regular graphic (or movie clip) and have it's opacity animated. Would increase filesize, but decrease cpu cycles for end users. You could counter act this though by starting the game once only the elements that are required to play the first level have downloaded. By the time you get to the end of that level, the rest of the elements should be done. You could put a 1 frame of code to check at the end of that level, if the user is on dial-up they would just wait for the download to finish at the end of that level.
Also I should note the freezing up occurs on the third stage (with the door, then ledge, then huge drop) in normal view. And it especially occurs in the J view on all prior levels. So whatever you're doing in J view it's really effecting slower machines.