A poor mock of function pointers in c#

FunctionPointers.cs

#define DEBUG

using System;
using System.Diagnostics;

namespace RandomMusings
{
  public class FunctionPointers
	{
		public static Func<int,int[],int> Summer(Func<int,int,int> sumFunction)
		{
			Func<int,int[],int> MoreSum = (x,args) => 
					{ 
						if(args.Length == 0)
							return x;
						else
						{
							int[] newArgs = new int[args.Length - 1];
							for(int i=  1; i < args.Length ; i++)
								newArgs[i - 1] = args[i];
							return sumFunction(x,MoreSum(args[0],newArgs)) ; 
						}
					};
			return MoreSum;
		}

		public static int Sum (int x, int y)
		{
			return (x + y);
		}

		static void Main ()
		{
			ConsoleTraceListener listener = new ConsoleTraceListener ();
			Debug.Listeners.Add (listener);
			var sum = Summer(Sum);
			Console.WriteLine(sum(4,new int[]{5,3,4,5,6,3,4,5}));			
		}
	}
}