CURSE YOU DUSTERS!
In the first game, I mostly ignored Dusters. It was far too easy to avoid their Gas Clouds, pull up beside them, and clip their wings. Today, I unlocked the Axe, and made it to Round 13. I was doing great, with about 3 Heals on me, among a wealthy stockpile of 360s, 180s, Bombs and Shields. So, on one turn, There was a Duster trying to rush me from the south, and a Dart escorting two Spotters to the Southeast. I angle towards the Spotters, the Axe's guns easily taking down the Duster. Next turn, I slow down, trying to kill the Dart before it can do much damage. The Duster, already falling from the sky, uses a Gas Cloud, right on top of me, and I go from full health to zero before the end of my turn. >_< I consider Dusters major enemies now.
This is a very fun game, the same charm from the first carries over here, with a much more focused story. Your a pilot trying to save London from the Germans, the only problem being that YOU WILL DIE. The planes are all varied, and while I usually go for a bumrush with the Axe, there are many strategies available. It's too bad some of the planes are Cash-only, some of them look like they'd be really fun to mess around with.