A tired and played out game engine, a story that is not memorable in the least. Yet we still keep playing.
And much like the Dynasty Warriors, Namco sees no reason to update the engine, the gameplay mechanics, or even the storyline. Every Ace Combat game is the same. While fun, overall the series has become very forgettable.
The assortment of aircraft at your disposal is once again top notch, and it should be, it's the same planes they have used in the last three entries into the series. The story is as usual convoluted and innane with no memorable points in it whatsoever. The one thing that was a positive for Zero was the addition of multiple enemy Aces. There were, I believe, over 50 different Aces that you could encounter in the game. But all told, Ace Combat Zero is the same as it's predecessors, good mindless fun with little replay value in the end. Pick it up because you love the series. Don't pick it up if you're expecting something new.