Broken Player Script

using UnityEngine;
using System.Collections;

public class Player2 : MonoBehaviour {
    public float debounce = 2f;
    // Use this for initialization
    void Start () {

    }

    // Update is called once per frame
    void Update () {
        transform.position += new Vector3(Input.GetAxisRaw("Horizontal")*5*Time.deltaTime,0,0);
        if (Input.GetAxisRaw("Horizontal") > 0) {
            transform.eulerAngles = new Vector3(0,360,0);
        } else if (Input.GetAxisRaw("Horizontal") < 0) {
            transform.eulerAngles = new Vector3(0,180,0);
        }
        if (debounce > 1) {
            if (Input.GetAxisRaw("Vertical") > 0.5) {
                Debug.Log (Input.GetAxisRaw("Vertical"));
                Debug.Log(transform.position.z);
                Debug.Log(transform.position.z <= 8f);
                Debug.Log(12.15f <= 8f);
                transform.Translate(new Vector3(0,0,(transform.position.z <= 8f) ? 4.05f : 0));
                debounce = 0;
            } else if (Input.GetAxisRaw("Vertical") < -0.5) {
                Debug.Log (Input.GetAxisRaw("Vertical"));
                Debug.Log(transform.position.z);
                Debug.Log(transform.position.z >= -8f);
                Debug.Log(-12.15f >= -8f);
                transform.Translate(new Vector3(0,0,(transform.position.z >= -8f) ? -4.05f : 0));
                debounce = 0;
            }
        } else {
            debounce += Time.deltaTime;
        }
        if (Input.GetButton("Jump")) {
            if (Physics.CheckCapsule(GetComponent<Collider>().bounds.center,new Vector3(GetComponent<Collider>().bounds.center.x,GetComponent<Collider>().bounds.min.y - 0.1f,GetComponent<Collider>().bounds.center.z),0.02003445f,~(1 << 8))) {
                GetComponent<Rigidbody>().AddForce(Vector3.up * 150);
            }
        }
    }
}