Glitch Auto-asteroids

[SWF(width=600, height=400, backgroundColor=0x000000, frameRate=30)]
// make some ships
for (var i:int = 0; i<10; i++) makeShip();
//
function makeShip():void {
	// setup vars
	var char:Object ={posX:Math.random()*stage.stageWidth, posY:Math.random()*stage.stageHeight, velX:0, velY:0, rad:4, theta:Math.random()*6.28, thetaDest:Math.random()*6.28, mc: MovieClip(addChild(new MovieClip()))}
	// draw and position the char
	with(char.mc) graphics.lineStyle(0,0xFFFFFF), graphics.moveTo(-15, -5), graphics.lineTo(0, 0), graphics.lineTo(-15, 5), x=char.posX, y=char.posY;
    // loop
    addEventListener(Event.ENTER_FRAME, function(){
		// change position based on velocity, .9 friction
		with (char) posX += velX *= .9, posY += velY *= .9;
		// randomize radius and theta
		if (int(Math.random()*10) == 1) char.thetaDest += Math.random()*2-1;
		if (int(Math.random()*90) == 1) char.rad = Math.random()*4 + 4
		// apply changes to velocity
		char.theta += (char.thetaDest - char.theta) / 12;
		char.velX = char.rad * Math.cos(char.theta);
		char.velY = char.rad * Math.sin(char.theta);
		// screen bounds
		if (char.posX > 620) char.posX = -20;
		if (char.posX < -20) char.posX = 620;
		if (char.posY > 420) char.posY = -20;
		if (char.posY < -20) char.posY = 420;
		// rotation
		char.mc.rotation = (Math.abs(char.mc.y - char.posY)>.7 || Math.abs(char.mc.x - char.posX) > .7) ?  Math.atan2(char.posY - char.mc.y,char.posX -  char.mc.x) / Math.PI * 180 : char.mc.rotation;
		// shoot
		if(int(Math.random()*100) < 20) shootBullet(char, 5 * Math.cos(char.mc.rotation * Math.PI / 180)+ char.velX, 5 * Math.sin(char.mc.rotation * Math.PI / 180) + char.velY);
		// apply position
		with(char) mc.x = posX, mc.y = posY;
		});
}
// 
function shootBullet(char:Object, vx:Number, vy:Number):void{ 
    var b:MovieClip = MovieClip(addChild(new MovieClip()));
	b.life = 0;
	with(b) graphics.beginFill(0xFFFFFF), graphics.drawCircle(0,0,2), x = char.mc.x, y = char.mc.y;
	b.addEventListener(Event.ENTER_FRAME, function(){
			with (b) x += vx, y += vy, life++;
			if (b.life > 30) b.removeEventListener(Event.ENTER_FRAME, arguments.callee), removeChild(b);
	});
}

An asteroids inspired code snippet. See the swf here.