unity - How to do pixel perfect movement with Unity3D?

How would you be able to make sprites move pixel by pixel in Unity3D? I've tried the following things.

• 
  

  int x = (int) transform.position.x;

  
  


• 
  

  int x = Mathf.FloorToInt(transform.position.x);

  
  



• 
  

  int x = Mathf.RoundToInt(transform.position.x);

  
  

I don't know what else to try

Because I'm making an SNES looking game, and when things move, there is very bad pixel crawl in the sprites.