Unlock all cars and tracks:
Hold R1 + L1 and press Circle, Square(2), Triangle, X at the
main menu. The sound of an engine revving will confirm
correct code entry.
All cars:
Collect 11 Bonus Stunt items while completing Challenge 8.
All worlds:
Find the Hidden Key while completing Challenge 18. The yellow
key is in the Mines, across a trestle at the end of a tunnel.
All gadgets:
Intentionally hit 25 Barrels while completing Challenge 7.
Laser upgrade:
Note: You must get an "A+" rank when doing the following.
Complete all challenges, then unlock the "Timer Speed" cheat.
Set it to 10% speed. Change the difficulty level to very hard
then complete Challenge 18. Get the "A+" rank to unlock the
"Laser Upgrade" cheat.
Unlimited ammunition:
Intentionally hit 50 Barrels while completing Challenge 18.
Unlimited health:
Intentionally hit 179 Barrels while completing Challenge 17.
Unlimited turbo:
Collect 8 Zappers while completing Challenge 4.
Timer speed:
Intentionally hit 13 Detour Signs while completing Challenge 15.
Gadgets for completing challenges:
Challenge 1: Laser Cannon
Challenge 3: Sonic Boom
Challenge 4: Atom Blaster
Challenge 7: Freon Bomb
Challenge 9: Energy Shield
Challenge 10: Jet Booster
Challenge 13: Super Zapper
Challenge 15: Magnet Mine
Challenge 16: Doom Disks
Sites: