Unlock all cars and tracks
Hold [R1] + [L1] and press [Circle], [Square]x2,
[Triangle], [X] at the main menu. The sound of an engine
revving will confirm correct code entry.
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.
Unlimited ammunition
Intentionally hit 50 Barrels while completing Challenge
18.
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
Glacier Track
Successfully complete Challenge 11.
Crankshaft Docks
Successfully complete Challenge 8.
Underworld Arena
Successfully complete Challenge 17.
Sho-Stopper vehicle
Successfully complete Challenge 6.
Surf Crate vehicle
Successfully complete Challenge 12.
HW Prototype vehicle
Successfully complete all missions in adventure mode.