HI all, im needing help, im in flash as2 and im trying to make my enemys move diagonally downwards and when they reach the limits iv set (the buildings) i want them to bounce off and go the other way, but the way its going one it hits the sides, they just go down straight. i couldnt get it to work with hittests so iv just used > < limits. code as follows:  
onClipEvent (enterFrame) { enemySpeed = 2; sideSpeed = 4;    if (this.hitTest(_root.newBullet)) {  this.gotoAndStop("dead");  }  this._y += enemySpeed; this._x -= sideSpeed;  if (this._x<175) {  this._x += sideSpeed; } if (this._x>375) {  this._x -= sideSpeed; }}
 
    
        Notice from rvalkass:
        
    
    
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