Loved it.
The is an perfect example of a fun game!
Its not always visual quality that matters, sometimes you have to drag fun over quality.
I loved the flying system, and bombing away innocent people, add to that the hilarious drawings, lovely and fun game.
As i said, visual quality is not always that matters, but that doesn't get you a high grade on the Graphics level, though that doesn't matter if your game is fun.
But one thing was verry nicely done about the grapics, the explosions and ignitions of the rockets, those where lovely.
The sounds where fairly well done, they weren't real quality work but they added points to the hilarious fun level though. :)
Add lots of voilence and humour to that, and you got this game... Lovely fun stress releaving time waster.
Grapics - 6
They wheren't that nice, but it doesn't matter.
Explosions and ignitions where verry nicely done.
Style - 8
Fun, what can i say more, crazy action shooting people down from a plane, didn't see a game like this that often.
Sound - 7
It wasn't that great, but on the other hand it fits this game just fine!
Voilence - 8
Killing people from a plane, endless voilence. :)
Interactivity - 8
There was mutch to do, nice set of weapons and upgrades, leveling and special attacks, but after a while it may become repetetive though, add to that that leveling gets a bit TOO slow after a while.
Humor - 8
Hilarious shooting and random voilence, nothing more to say. :)
Overall - 8
How to improve?
Well this might seem hard or strange, but just take these as idea's.
Money system, instead of leveling maybe you could allow us pitstops beetween levels where we can purchase lives, upgrades, weapons etc.
More enemies,
How about, naval enemies? Killing people on a cruiser, air enemies, robots, futuristic enemies, mutants, monsters... and go on :)
Other planes
How about planes wich allow more weapons, or wich are more powerfull or could take more fire?
But then again, these are just idea's.
As a final word, this is a very fun game, keep on going like this. :)