Each room or set is wonderfully crafted with extra effects such as rain, smoke or steam, neon lights etc. The spinners or flying cars are nicely done, and the structures resemble the ones exactly in the film. Unfortunately, there is one aspect of the graphics which breaks the perfection. That is the 3D characters, you control and talk to. They are heavily pixalated, escpecially when up close, and feel like that they were just 'plonked' in there.
Sound effects is fine.
Speech is well done as I said before with voice talent from the movie. Unfortunately, no Harrison Ford. I'm sure he would have loved to be in a computer game. The companies probably don't even ask him since he is such a valuable famous actor. One complaint though is the music which in itself is fine but is not as nearly as good as the music done by Vangelis for the film.