Successfully complete the game and save when
prompted. Use that saved game to continue a new
game. Successfully complete the Blue Wing
Knights mission, then choose another mission.
Press Square at the aircraft selection screen to
choose from the Vic-Viper and other bonus
planes. The Vic Viper has a longer range machine
gun that can destroy an enemy plane with one
hit. Other bonus planes such as the TwinBee,
MX5000, Falsion, Blue Thunder M-450, Manbou-J,
Flint-Rock, Aura-Wing, Jerry Mouse, Block
Shooter, Super Fighter, Penta, Axelay, and Poly
will also be unlocked, depending on how well you
performed in your cleared saved game. You can
clear the game on the same file repeatedly to
unlock more planes.
Play an Earth mission with the Vic Viper to hear
music from level 4 of Gradius. Play a Space
mission with the Vic Viper to hear music from
Successfully complete the game, then start
another game with your file to begin with all
airplanes (including bonus planes), medals,
money, stats, FMV sequences, and replay levels
that were previously unlocked.
Play As Ellen McNichol
Focus the game play with Ken. Every time you see
Albert, shoot him down. Try shooting him down in
every mission. If done correctly, Ellen will be
unlocked for the space missions. Ellen has
planes such as the Bird Of Prey.