At the fighter select screen do the following:
Effect Code Aegis II-c Hold Fire, Press Start, Move to Aegis IV, Hold Up, Press Fire Blue Javelin Hold Fire, Press Start, Move to Random, Hold Down, Press Fire Dark Sword Hold Fire, Press Start, Move to Random, Press Fire Fairy Hold Fire and Bomb, Press Start, Move to Random, Hold Down-Right, Press Fire Judge Spear Press Start, Move to Random, Hold Down, Press Start Miclus Hold Fire, Press Start, Move to Random, Hold Down-Right, Press Fire Raiden mk-II Press Start, Move to Random, Hold Right, Press Start Raiden mk-II Beta Hold Fire, Press Start, Move to Random, Hold Right, Press Fire Slave Hold Fire and Bomb, Press Start, Move to any plane/Random, Press Fire and Bomb
Contributed By: ruhztee.
Unlock All The Ships
To unlock all the ships, go to the machine's Test Menu. Enter "Game Settings", change everything to 9 on "Shooter1 Coin/Credits" and "Shooter2 Coin/Credits". Also turn On "Free Play". Now exit that menu and go to "I/O Test". Hold the Test and Service button and repeatedly press the 2nd player's Start button. If done right, you should see the "Days of Operation" counter increasing. Set it to over 140. Exit that menu and reset the "Shooter1 Coin/Credits", "Shooter2 Coin/Credits" and "Free Play" if you wish. You can now exit the Test Menu altogether and reboot the machine. If done right, all the ships will be selectable.
Unlock The Ending (USA/Europe Version)
Finish the game twice to unlock the ending.
Contributed By: fepnascimento.
Unlock The Real Last Boss (Japanese Version)
To reach the real last boss, you need to achieve a 100% Target Destroy Rate on levels 3 and 6. If done right, you'll face the true last boss (a black ship) after destroying the fake last boss (a base). In the non-Japanese versions you'll always face the true last boss regardless of your performance.
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