PANEL* MenuGame = 
{
   ...
}

PANEL* MenuGame = 
{
   button (250, 250, "button1.bmp", "button2.bmp", "button3.bmp", function1, function2, function3); 
}

//header
//=================
#include <acknex.h>
#include <default.c>

function HelpFunction();
function PlayFunction();

//Game Menu
//=====================
PANEL* GameMenu=
{
   pos_x = 50;     
   pos_y = 50;    
   button (250, 250, "PlayButton1.bmp", "PlayButton2.bmp", "PlayButton3.bmp", PlayFunction, NULL, NULL); 
   button (250, 300, "HelpButton1.bmp", "HelpButton2.bmp", "HelpButton3.bmp", HelpFunction, NULL, NULL); 
   flags = OVERLAY | VISIBLE;
}

//Function main
//======================
function main()
{
	mouse_mode = 2;
	while (1)
	{
		mouse_pos.x = mouse_cursor.x;
		mouse_pos.y = mouse_cursor.y;
		wait (1);
	}
}

//Help Function
//======================
function HelpFunction()
{
}

//Game start function 
//======================
function PlayFunction()
{
}