Config.cs

using UnityEngine;
using System.Collections;

public class Config : MonoBehaviour {

    public bool skipAnimations = false;

    static public Config instance { private set; get; }

    public Config()
    {
        if (instance != null) {
            throw(new System.Exception ("Error: Cannot create more than one instance of Config!"));
        }
        instance = this;
        loadFromCommandLine ();
    }

    void loadFromCommandLine()
    {
        string[] args = System.Environment.GetCommandLineArgs ();

        foreach (string arg in args) {
            if (arg == "--skipAnimations") {
                skipAnimations = true;
            }
        }
    }

    void loadFromFile()
    {
        // TODO
    }

    void saveToFile()
    {
        // TODO
    }
}