Movement

using UnityEngine;
using System.Collections;

public class PlayerMovementTest1 : MonoBehaviour {
    public float speed;
    public float rotationSpeed;

    Vector3 rotation;
    Rigidbody rb;
    float horizontal;
    float vertical;

    // Use this for initialization
    void Start () {
        rb = GetComponent<Rigidbody>();
    }

    // Update is called once per frame
    void Update () {
        rotation = new Vector3(0f, Input.GetAxis("Horizontal2"), 0f);
        horizontal = Input.GetAxis("Horizontal");
        vertical = Input.GetAxis("Vertical");
    }

    void FixedUpdate()
    {
        rb.MoveRotation(transform.rotation * Quaternion.Euler(rotation * rotationSpeed));
        rb.MovePosition(rb.position + (transform.forward * vertical) * speed);
        rb.MovePosition(rb.position + (transform.right * horizontal) * speed);
    }
}