Enter "911" as a number. An ambulance will arrive to heal you for a fee.
Complete all Top Model driving missions.
Complete all Vehicle Transport driving missions.
Discover all car dealerships.
Push start then press B, X, Y, RT, LT, X, A then push resume play and all cars will be unlocked.
Win the Tour of the Island race.
Go to the Equipment Modifiers screen. Once there, you are able to take the equipment bonuses off of equipment that you don't have, but have unlocked already, and put them onto equipment you do have. You can use this to get 10% bonuses to all stats early on.
Go to the password screen and enter ITSINTHEGAME
While you're in story mode, make sure you are patient when the guards come. Always let him come to you and sneak at him and grab him.
Press Right(2), Left(2), Down, Up, Down, Up, Start at the Cerebro Files menu.
20 gamer points - Deal at least 2,000 points damage overall to receive this award!
15 gamer points - Complete all twenty single player deathmatch challenges.
5 gamer points - Deal five hundred points damage overall to win this award
Explode 25 barrels and you will get the barrel buster award
15 gamer points - Kill 3 worms with only one shot to get this award
Unlock all of the Final Tables Collector Chips.
Reign victorious at the Tournament of Champions at Rio Las Vegas.
Complete the Home Game and you will unlock the Casino Events.
Unlock all of the ALL In and Win Collector Chips.
Unlock all of the Invitational Wins Collector Chips.
At the main menu screen, enter in Up, Up, Down, Down, X, A, X, A.
At the main menu screen, enter in Right, Up, Up, Down, Right, Left, Left. This should unlock 2 bonus Cybertron missions.
50 gamer points - Win a skate session against any member of the Project 8 development team
Beat Bam Margera in the Pro Challenge.
Beat Each Pro Challenge ONE AT A TIME.
15 gamer points - Complete 50 games online.