Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of the detection of a high fluence blue light stimulus by the blue high-fluence system. Blue light is electromagnetic radiation with a wavelength of between 440 and 500nm. The blue high-fluence system responds to blue light at levels between 100 and 1000 micromols/m2.