There is a tutorial in the game - go and play that for instructions. ALL LEVELS IN THE GAME ARE POSSIBLE, but the last level on each section is very hard, to give people who are really good at the game a proper challenge. Also, the normal levels get progressively harder throughout the game. If you find any glitches please post them in the comments for me to look at. Coming "soon": A timer for aircraft changing roles. A timer for spotters A 7th aircraft Sounds? More aircraft and enemies for the modern level.
I'm putting all of my effort into another game, so the updates on this one will slow down for a while. Updates: V0.0 - Just a simple animation. V0.1 - Added a hangar and 10 aircraft, along with the ability to let planes take off and land. V0.2 - Improved the aircraft and added enemies and a carrier HP bar. Reduced aircraft to 2. V0.3 - Added more enemies and a third aircraft. V0.4 - Added a campaign. V0.5 - Fixed problems with the campaign. V0.6 - Fixed inconsistent take off buttons. V0.8 - Added save codes. V0.8.5 - Fixed hangar and made planes movement smoother. V0.9 - Preparations for Ark Royal. V0.9.5 - Ark Royal levels added. V1.0 - All Ark Royal levels finished, along with a special "Boss" level. Official game release. V1.0.2 - Added a tutorial and fixed bugs. V1.0.4 - Improved enemy AI and nerfed hangar repair times. V1.0.7 - Added new damage and HP system. Fixed glitches. V1.1 Fixed glitches and added animations for when enemies hit you. Improved the damage model. I also made the final levels in each section very hard just for fun. V1.1.2 - Buffed Ark Royal's hangar repair times and fixed the tutorial. V1.1.4 - Added a sixth plane to the game. V1.1.5 - Fixed glitches and added a death message. V1.2 - Added HMS Illustrious, the Fairey Fulmar and a unique "Battle of Taranto" level. Fixed a massive, long standing glitch where the game would soft lock itself. V1.2.1 - Preparations for USS Enterprise (1982). Fixed bugs. V1.3 - Added another enemy aircraft. Added USS Enterprise levels. Added another hangar spot and another 2 catapult spots. Fixed bugs. Added different enemy aircraft silhouettes for the different stages. V1.3.1 - Added the little "canards" that appear when the wings sweep back to the Tomcat.