K this was really good.
But there was the crash=knockback thing.
Yea that pissed me off. If you have your tank's speed fully upgraded and crash into a wall or something at full speed, then it takes forever for the tank to actually start moving again.
And about the chainsaw-my fave:D.
Though i didn't try on normal airplanes, but i could beat the final boss (who, as i saw, was flying) just by standing under it with a fully upgraded chainsaw...
Shouldn't they be out of reach or something? "Immune to chainsaw" or whatever?
Anyway , good game.