Allow copies of movie to act independently...?

Hi, this is my first real post. I hope you find it interesting.

I have created a page for my kids here. It features 192 copies of the same file (eye.swf) that independently follow the mouse around the screen. (This works really well if you have a fast processor.) The trouble is this: when viewed seperately, the eye in eye.swf will change color when clicked, but it doeesn’t work when they are all together on the screen at the same time.

The main timeline has two layers (the movie clip and the background), and two frames (frame 1 has the following code to make the movie clip, “eye”, follow the mouse:
[as2]
a = eye._y-_ymouse;
b = eye._x-_xmouse;
angleA = Math.atan2(a, b);
degrees = angleA/(Math.pi/180);
setProperty (“eye”, _rotation, degrees);
[/as2]
and the second frame just loops it back to the first frame to be reevaluated by the actionscript).

The movie clip called “eye” is broken up into frames wherein the actionscript sets the color of the iris to a different color when the mouse button is released. The actionscript is applied to a nested movie clip, “pupil”, thus:

[as2]
onClipEvent (enterFrame) {
var colorful = new Color("_root.eye.pupil");
colorful.setRGB(0xCC0000);
}
on (release) {
_root.eye.nextFrame();
}
[/as2]

and it’s pretty much the same thing for each frame.

Like I said, it works perfect when only one copy of the movie clip is present on the stage, but breaks down when more are present. Does anyone have any suggestions? I’m sure it has to do with directing the code for each movie clip to itself, thereby breaking down my beautiful plethora of one movie clip, but I hope that’s not it. So, please, make my day by showing me some other way…? Or, if that really is it, can you give me any suggestions in that direction?

Further info: each copy of the movie clip, “eye”, that you see on the screen in the above link, is displayed in an individually named movie clip on the main timeline of the movie in which it is presented (ie, _level0).

Also: Before you say anything, I know the difference between an iris and a pupil.