108! Super addictive game, replayed it so many times. There's something about the combination of graphics, music and fast-paced gameplay that makes it into something much better than it seems at first sight. Cam shake, enemies splashing, even the way your car looks as you're turning is super smooth and fun.
I didn't like how all enemies are firing at once - it does feel kind of unfair at times as they just appear and you're in a bad spot being shot at once from all directions. It would kill this game if it wasn't a taking a second to jump back in and try again!