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 3: Super Score

Options:

Numpad 1: Invincible

Numpad 2: 9 Lives

Numpad 3: Super Score

Numpad 4: 99 Credits

Notes:

Numpad 1: Invincible - toggle on and you are invincible

Numpad 2: 9 Lives - while in the game press this to affect the value.

Numpad 3: Super Score - while in the game press this to affect the value.

Numpad 4: 99 Credits - while in the game press this to affect the value.