Space Invaders has become, over the years, not so much an old favourite as an old chestnut. So you've got to have a pretty brilliant version if you still want to cut any ice. An indifferent adaptation like this is of no interest to anyone.
There are three skill levels: Rookie, Master and Expert - but only the latter offers any sort of acceptable speed and even then you could sit playing it for hours. The unstoppable menace which made the original such a hit has gone to lunch and there's nothing in its place. Only the sound, namely a hesitant rendition of the Star Wars march is vaguely commendable.