title: Move game object in direction its facing without rigidbody
body: <p>I want an object (bullet) in 2d space move towards the direction its rotated in. Im using </p>
  
  <pre><code>   transform.position += Vector3.up * Time.deltaTime * Speed;
  </code></pre>
  
  <p>which makes it just move upwards no matter what rotation the z axis has. What am i missing?</p>
  
  <p>The bullet has no ned for a rigidbody2d component so i want to do it without. </p>