Then in script :

bbox = getObject("bbox")
Sound0 = getObject("Sound0")

soundplay = 0

-- scene update
function onSceneUpdate()

    bboxcoll = getNumCollisions(bbox)

    if bboxcoll >= 2 then -- you might have to change value here
        if soundplay == 0 then
            playSound(Sound0)
        end
        soundplay = 1
    else
        soundplay = 0
    end
end

Hope it helps