It's only too easy to point out all the bad things about this game.
Now it's all down hill from there. I think Square Enix forgot this was an action game. The gameplay is horrid, a good four years behind the curb of modern day shooters. The North American version of the game has the added 'double jump' feature added, but a whole lot of good it does. Jumping will do nothing for you except make melee combat look cooler. Although I mentioned the levels looked great, that was all they had going for them. They are so linear as you lead Vincent Valentine through nothing more then a tube the whole game with no room to explore. The game never lets you deviate from the set path, you can never jump over railings or most objects, you constantly run into invisible barriers and four foot tall laser gates set up by enemies. In the movie sequences you watch your character leap onto rooftops and onto enemy helicopters, but during game play you can't get over a three foot fence. Lame.
While the cinematic moments of the game looked beautiful, the realtime sequences were painful to watch. Not only were they slow, often uneventful, and full of loading times, but most of the time they make no sense to the player. People who never played Final Fantasy VII will probably be lost as far as who's who. Even those that did play FFVII will often scratch their head at the incoherency of much of the story. You'll often be magically wisked into new levels that are continents apart with no explanation of how you got there.
The weapon customization plays a big part of the game, but it's boring and rather simple. It doesn't add any real depth to the game, you just sort of have to keep buying upgrades for your weapon to continue defeating enemies in a timely manner.
Over all it's a chore to play this game, I often found myself just playing so that I could advance the story and wanting to strangle the staff at Square Enix. In this case the fans lose big time.