Get rid of the awful lives system (I always hate that in these sort of games anyway, it's a short piss about type of game, the replayability comes from going through the levels for fun, not through being frustrated at redoing the first handful of boring ones constantly).
Also remove those god awful slow sections that appear from level 9 onwards, absolutely annoying in these types of games as all they do is frustrated you if you accidentally hold the up button a fraction of a second too long.
About as fun as nose diving onto a sea of barbed wire from a 20 story building. Fix the fact that you spin faster than my washing machine and you might be onto something.
I agree with some other commenters, the hacking sections was dull and didn't really add anything to the game. Just felt like it was there to make the game longer. Otherwise still good but relatively short.
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