Here are some cheats and tips for the game Flight of the Intruder.
GZUOZYVG Infinite radar-guided missiles–bombing/strafing screen
PAOALZTE Start with 9 radar-guided missiles–bombing/strafing screen
GZUOLKVK Infinite missiles–cockpit screen
GAKGKGAA Start on mission 3
ZAKGKGAE Start on mission 6
APKGKGAA Start on mission 9
TPKGKGAA Start on mission 12
OZKZTXOK + AAKXGZPA Start each mission with 6 missiles