The planes in this game are a joy to fly, the characters are badass and the story is a blast! The graphics are amazing for an original XBOX too. Everything has a surprising amount of detail, the worlds are aesthetically pleasing and the water especially is stunning. It looks even better on the XBOX 360, where it runs in HD with a smooth framerate. Simply put, the best game you can get for the original XBOX, even though XBOX Live is no longer supported for it. Pick it up. It's well worth the $10 it'll cost you.
Cheerful graphics and sound, innovative gameplay and a hilarious plot and premise. And the tank battles are great fun too! The only problem is the sheer lack of challenge. I didn't die once, and once I figured out the secret to utterly destroy enemies in tank battles (which I will not share here, as it's truly game destroying), I would often not even take a single point of damage throughout the whole battle. Still, it's definitely one of the best games on the system, and well worth the $10 or so that it'll cost you.
Please ignore all of the negative reviews. It's just /v/ getting mad over the fact that Valve is charging money for in-game avatars, and it has nothing to do with the game itself. These people, despite claiming that "vidya" games is their passion thing that they truly enjoy, will try as hard as they can to find fault with a game and let this fault (however minor) ruin the experience for them. They are heartless, lonely, vengeful individuals who spend their nights alone on the internet bashing video games and will take any opportunity they can to "fight for justice" and have their voice heard, as you can see here. These poor people are lonely, bitter and cold, and any humanity they did have has died out long ago. You should simply ignore their blind hate, then pity their existence and move on.