This game is Insane! I remember when I used to go to Chuck E. Cheese's and would always make a B-line for the Jurassic Park machine. If you haven't played this game before, you aren't a retro fan.

This game is a 8.9 out of 10.
5 points for graphics= While it wasn't exactly the XBox of arcade games, it was still better than Atari or Plug'N'Play.
4 points for sound= While I know this wasn't exactly cutting edge, the sounds could use a bit more love. Of course they were the best possible (and WAY better than the first Gen. Pokémon cries) and I respect them for that.
9 points for addictiveness= Numerous amounts of tokens went into this machine, most of which were mine! I always found myself saying "Just one more go" whenever I died.
0 story points= Unlike the other JP games, you didn't really have much back story. Are you a visitor? A scientist? A guard? A THIEF?!?!?!(Yes, of course I'm talking about Nedry) If this had a story, then Addictiveness would have been a full-blown 10.
3 points for depth= While it did take a while to finish, If you were a pro, you could ace this game and still have time to hit the other games. As far as the realism goes, it had some incorrections. Such as: The Gallimimus attack you for no reason, The T-Rex's attacks do a REALLY low amount of damage, when that giant pair of chompers could take off your leg with one bite.
5 points for difficulty= While the noob dies instantly, It is easy to get a handle of. Take a few tokens with you and you should be fine.

While you have good structure, you would need to get into MUCH more details in order to make a good review. What are some of the graphical features you liked/hated? What about the sound? Don't be afraid to state your mind

I gotta agree with Janus, in future review, I'd suggest going into more detail as to why you gave the game and categories the scores you did. I will say this though, for a first review, I think you did a really good job. Most users don't separate their review into different categories, and some don't even make the minumum word count. You did both, and for that, I say good job, and I hope you'll be able to improve in the future.