Fun, addicting, and well crafted.
Right off the bat, SickDeathFiend's signature art style came to the forefront, which simply made the game a visual treat as I've always liked his work, and it went hand in hand with this brutal and chaotic vision.
Second, right in the intro movie, came the excellent voice work. Sapphire's work in voice acting I've enjoyed since Hippolyta and still shines well in this piece, but Joshua Tomar and DruoxtheShredder both did such an excellent job with the main character, the soldiers and the commanders, fleshing out into a full story what could have been dull and boring easily. I would almost say that the background chatter really made this game stand out so many others in the zombie genre. It brought to life to terror, chaos and carnage of an outbreak of the undead.
On top of art and voice acting the sound effects and music from SoS also create a full experience and really make it stand out.
Finally onto the gameplay itself; the controls were easy, and quite responsive for the most part, though I did find there were times the car would stop without explanation and often lead to death as it would happen in front of a soldier or helicopter. Some more bullets and a longer range with the pistol would have been nice to deal with soldiers outside the car but it didn't really impact the feel or flow other than those moments.
The upgrading system was quite good, and the upgrades themselves made a noticeable difference even if I didn't see any visible gauges for personal or vehicle health aside from the speedometer for, well speed. While it would have been nice to have some explanation or tutorial saying what you needed to do to get points, it was obvious after my first death. Also, the save and checkpoint system was very nice, and the fact that I didn't need to beat a section to earn those points was very welcome.
The zombie variety was a nice visual touch, and while all the soldiers looked the same, that is the point of a uniform. While the heavy gore and crashes caused some heavy lag it wasn't difficult to deal with and wasn't a problem.
The jolts from smashing into cars was very jarring, and while it was a nice little touch for difficulty perhaps the upgraded bumped could have lessened that impact a bit.
The ending of the story line was not entirely expected, though with some of the folks involved I suspected something along those lines was coming down the highway.
In the end, it's a great and entertaining game, with some feelings of Carmageddon. Well done to everyone involved.