After Burner Cheats

100 missiles:
Press Start + Speed on level 3.
Press Vulcan Cannon + Missile + Right on level 9.

Bonus points:
Press Vulcan Cannon + Missile + Left on level 11 for 50,000,000 points.
Press Start + Vulcan Cannon + Missile + Photo Sensor + Up on level 21 for 250,000,000 points.

Programmer messages:
Press Start + Vulcan Cannon + Missile + Photo sensor + Right during demonstration mode.
Press Start + Vulcan Cannon + Missile on levels 1 or 5.
Press Start + Vulcan Cannon + Missile + Left on level 13.
Press Start + Down on level 16.
Press Start on level 19.
Press Start + Vulcan Cannon + Missile + Photo Sensor on level 23.