Magician Mode
Submitted by: GameBoy Guru
Successfully complete the game, then start a new game and enter "FIREBALL" as a name. If you entered the code correctly, the word "Magician" will appear on the option screen. All trading cards will be available under the DSS option.
Fighter Mode
Submitted by: GameBoy Guru
Successfully complete "Magician" mode, then start a new game and enter "GRADIUS" as a name. If you entered the code correctly, the word "Fighter" will appear on the option screen. Nathan will be stronger and able to sustain more damage. There are no trading cards in this mode.
Shooter Mode
Submitted by: GameBoy Guru
Successfully complete "Fighter" mode, then start a new game and enter "CROSSBOW" as a name. If you entered the code correctly, the word "Shooter" will appear on the option screen. Nathan will have a substantial number of hearts, extra sub-weapon damage, and can use the Homing Dagger sub-weapon in this mode.
Thief Mode
Submitted by: GameBoy Guru
Successfully complete "Shooter" mode, then start a new game and enter "DAGGER" as a name. If you entered the code correctly, the word "Thief" will appear on the option screen. Nathan stats will be reduced in both the value they start and the increase with each level, except with LCK (Luck). Nathan will start with the value of 1600 LCK, and will gain an additional 160 LCK with each level (so at level 11 he will have 3200, and 4800 at 21, etc.).