All gadgets Intentionally hit 25 Barrels while completing Challenge 7.
Unlimited turbo Collect 8 Zappers while completing Challenge 4.
Unlimited ammunition Intentionally hit 50 Barrels while completing Challenge 18.
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.
Unlimited health Intentionally hit 179 Barrels while completing Challenge 17.
Timer speed Intentionally hit 13 Detour Signs while completing Challenge 15.
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.
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.
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
All cars Collect 11 Bonus Stunt items while completing Challenge 8. Note: The Bonus Stunt Items are the purple balls with silver rings rotating around them.
