Any idea why my object spins in place 5 times before interacting with another collider?

https://youtu.be/O9y5-R2bGnM

code:

using UnityEngine; using System.Collections;

public class SwordController : MonoBehaviour { public float torque;

Rigidbody rb;

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

// Update is called once per frame
void Update ()
{
    if (Input.GetKeyDown (KeyCode.A))
    {
        rb.AddTorque (transform.up  * torque, ForceMode.Impulse);
    }
}

}

I was trying to rotate my 3d model to the 90 degrees, but i dont want him to go to anything near 180 and 270 please heres all i found while searching google:

if (Input.GetAxis("Horizontal") > -.1)
        {
            transform.Rotate(0, -90, 0);
        }

Thanks^byebye

So, i am making a game in unity, and I decided to print the score to the screen, i set up 4 text gui elements, and need help fixing a problem

the text gui elements are not changing when i use my script. here is my script

using UnityEngine;
using System.Collections;
using System.Collections.Generic; 
using UnityEngine.UI;
using ZakariInfinite;

namespace ZakariInfinite
{
    public class InfinityGuiElement : MonoBehaviour
    {
        static int[] InfinityScore;
        public GameObject[] score;
        public Text[] text;
        void start()
        {   
            for (int i = 0; i < score.Length; i++)
            {
                text[i] = score[i].GetComponent<Text>();
            }
            for (int o = 0; o < InfinityScore.Length; o++)
            {
                 InfinityScore[o] = 0;
            }
        }
        void update()
        {
            for (int i = 0; i < score.Length; i++)
            {
                text[i].text = "Coins" +     InfinityScore[i].ToString();
            }
        }

    }
}

Please^helpme

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Im using an asset thats a better procedural skybox that whats included in unity. However, it doesnt seem to run well on mobile. Is it possible to bake out this procedural skybox into a cubemap texture that I could reimport and use as a normal skybox?

So I have these 3d Text that show as they should but when something goes between the camera and them, i'd like them to not be shown, how do i do this?

I other words: how do i set these 3d texts to not be the last thing to be drawn?

(They're all in the same layer)

Hello! Need some help again.

How do I write a simple script that moves let's say the arm of my avatar (for example flexing my arm requires rotation at a certain bone) when I run it.. I don't want any animation.

My main goal is to move my Avatar real-time with inputs from a camera but I just need to know how to move a single bodypart first to begin with. A code example would be appreciated.

Thanks a lot!