- PC
Get All Worlds
Finish Challenge 18 and find the Hidden Key
Get All Cars
Finish Challenge 8 and hit 11 Bonus Stunt Items
Get All items
Finish Challenge 7 and hit 30 Barrels
Infinite Health
Finish Challenge 17 and hit 179 Barrels
Infinite Turbo
Finish Challenge 4 and get 8 Zappers
Infinite Ammo
Finish Challenge 18 and hit 50 barrels
Timer Speed
Finish Challenge 12 and hit 60 barrels
Stunt Arena at Turbine Sands
Complete mission 3 in adventure mode. Go to main menu. 1 player. Joyride. My favorite car is Jaded. Turbine Sands. Any weapon u want. when u start turn right. go straight until you see an entrance. BAM that's the stunt arena.
Unlimited horse power and perfect handling
Beat the first ten races with a rank of third or higher. Once finished with this task you will need to start a new game and once u have completed the first five racesnew game. this time come in last each time ten times and reset the Playstation and when you look in your garage u will have a Shelby gt-350 that can go 300 and hit a turn no problem at top speed
Flying
Select Jet Boosters and Hyper Mite and then go to Turbine Sands in joy ride mode. Then find the freestyle course, go off the metal ramp while jet boosting, and then use jet boosters while in the air and you will be flying
Unlock HW Prototype 12
To unlock HW prototype you must complete all the missions in adventure mode.
Easiest way to beat the last mission
If you have unlocked it, use the Surfin' School Bus with the Energy Shield gadget. When you start, you have to go through a mine field. Keep using your energy shield. When you meet Rupert, you must disable him. Use your Energy Shield until you get a gadget that you can attack with. Disable Rupert and his henchmen if they get in your way. Then, you have to go destroy the computer with the special gun. Find the special gun and destroy the computer. Otto will appear and drive off. You must chase him. There will be more mines, so use your energy shield again. When you catch him, disable him with your special gun because it will take him out with two or three hits.