selector=image.load("Ruta");
variable=1;
 
while true do controls.read(); 
screen.print(0,2,"Menu1")
screen.print(0,22,"Menu2")
if variable==1 then selector:blit(0,12) end
if variable==2 then selector:blit(0,32) end
if controls.press("down") then variable=variable-1 elseif controls.press("up") then variable=variable+1 end
if variable<1 then variable=2 elseif variable>2 then  variable=1 end
screen.flip();
end

--Colores
black=color.new(0,0,0)
azul=color.new(0,128,192)
--Cargando imagenes
menu = {}
menu[1] = image.load("Imagenes/fondo menu1.png")
menu[2] = image.load("Imagenes/fondo menu2.png")
menu[3] = image.load("Imagenes/fondo menu3.png")
menu[4] = image.load("Imagenes/fondo menu4.png")
options = 4
mActual = 1
while true do
controls.read()
screen.clear(black)
image.blit(0,0,menu[mActual])
 
if controls.press("up") then
    if mActual<=1 then mActual=4 else mActual = mActual - 1 end
elseif controls.press("down") then
    if mActual >=4 then mActual = 1 else mActual = mActual + 1 end
end
if controls.cross() and mActual == 1 then
dofile("script dificultad.lua")
end
if controls.cross() and mActual == 2 then
os.message("En Proceso")
end
if controls.cross() and mActual == 3 then
dofile("script creditos.lua")
end
if controls.cross() and mActual == 4 then
os.exit()
end
 
screen.flip()
end