Aquas was fun, going around blowing up stuff with the Blue-Marine. All you do is torpedo everythng except vertical squids, the snake fish, the mantises when they open, the shell torpedoes, the angular sub etc.
Zoness has one of the coolest soundtracks, plus its my 2nd fav level.
Sector Z was the one you had to defend the great fox from missiles. Sector X can take you there via warp. But it is suggested you go to Katina and help Bill out so he can help you open the warps.
Pfft. Area 6 was easy, all you needed was enough bombs to penetrate the mine field. That field alone gives you 90+ points at the start. If you shot charged blasts at the rockets from the Ships before the missile part, you get free kills too. And it got awesome when you got to the Aircraft Carrier regions.