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: Add 1 Enforcer Bounty - In full version, this amount is much larger and remains in effect after game saves.

Options:

Numpad 1: Add Violator Bounty

Numpad 3: Add Enforcer Bounty

Numpad 5: Add Bounty in Event

Numpad 7: Proximity Freeze

Numpad 9: No Damage

Numpad 0: Super Smash

Numpad *: Unlimited Nitro

Numpad /: Drain Nitro Challengers

Numpad .: Freeze Event Timer

F2 KEY: Unlimited Car Weapons

F3 KEY: Faster Weapon Refill

F4 KEY: Weapon Fuse Blown

Notes:

Numpad 1: Add Violator Bounty - adds 5000 bounty at main career screen to the Violator missions. You must complete an event or do something that causes the game to save for it to 'take hold' and save to your character's info.

Numpad 3: Add Enforcer Bounty - adds 5000 bounty at main career screen to the Enforcer missions. You must complete an event or do something that causes the game to save for it to 'take hold' and save to your character's info.

Numpad 5: Add Bounty in Event - adds 1000 bounty each press during missions.

Numpad 7: Proximity Freeze - vehicles in your proximity will freeze into place. This is useful in races to get around your opponents and also useful in missions where you have to catch speeders. You might need to turn this off until the actual event starts to prevent scripting visual bugs.

Numpad 9: No Damage - your car's damage meter remains full (no damage).

Numpad 0: Super Smash - when you strike cars from the side or behind, if the strike is a non-crash strike it will impart more damage.

Numpad *: Unlimited Nitro - you have unlimited nitro usage.

Numpad /: Drain Nitro Challengers - your opponents cannot use nitro.

Numpad .: Freeze Event Timer - most events and missions the timer will freeze.

F2 KEY: Unlimited Car Weapons - press this and most weapons and callable items used by various cars should fill up.

F3 KEY: Faster Weapon Refill - press this and most other weapons and callable items used by various cars should fill up. Use this for missions that have other items than spikes, etc. or when above options don't work for certain missions or have different items to use.

F4 KEY: Weapon Fuse Blown - turn this on and non-player vehicles will have a harder time using their Car Weapons. This effectively prevents many vehicles from using their weapons and powerups as often.