LAST LEVEL: Max your armor, buy max crash missiles, and equip the auto repair, flamethrower, rockets, and cannon. Enemies come in waves, with relatively long gaps between waves. When a new wave starts, get away from the boss and focus on defeating the wave. Remember to keep moving so you don't get hit often. Use cannons for tanks and rockets for large groups and aircraft. The flamethrower defeats the boss the fastest, but also has the shortest range, so only use it between waves. The rocket does a lot of damage to the boss too. Use all the crash missiles on the boss whenever possible. When the mini-boss air bomber comes, don't worry about defeating it. It's not worth the time. At this point, the main boss should be at very low health, so just focus fire on the main boss. Remember, the key is to defeat each wave as fast as possible. If too many enemies gang up, it will be impossible to win. Good luck! Please + for all to see.