Using this Trainer:
Launch the trainer first, then launch the Game and then Press F1 at the Main Menu.
Listen for "Activated".
Press desired option key
Options in Promo:
Numpad 5: Unlimited Overdrive
Options:
Numpad 1: Mega Money
Numpad 2: Mega Hull
Numpad 3: Unlimited Oxygen
Numpad 4: Unlimited Bolts/Super Mode
Numpad 5: Unlimited Overdrive
Notes:
Numpad 1: Mega Money - make sure you are in the sub and have opened the inventory and can see your money. Press this and you have plenty.
Numpad 2: Mega Hull - while driving around in the sub, press this and your sub is nearly invincible.
Numpad 3: Unlimited Oxygen - while driving around in the sub and you have at least one cannister of Oxygen that still has air in it, then toggle this on and your oxygen will not deplete.
Numpad 4: Unlimited Bolts/Super Mode - when in combat, toggle this on and when you fire bolts, you will not run out. May work with other weapons as well! For super mode, while this is on and you are buying or selling goods or using materials, the amount of them will not decrease when using them. For instance, if you buy food while this is on, you can keep buying it over and over to have plenty.
Numpad 5: Unlimited Overdrive - while in the sub and you are using overdrive, toggle this on and it will remain full.