Tony Hawk's Downhill Jam
- All events
- Enter "ADVENTURESOFKWANG" as a code to unlock all events. Note: The effect of this code is not saved.
- All skaters
- Enter "IMINTERFACING" as a code to unlock all skaters. Note: The effect of this code is not saved.
- All boards
- Enter "RAIDTHEWOODSHED" as a code to unlock all boards. Note: The effect of this code is not saved.
- All movies
- Enter "FREEBOZZLER" as a code to unlock all movies. Note: The effect of this code is not saved.
- Infinite boost
- Enter "OOTBAGHFOREVER" as a code.
- Always special
- Enter "POINTHOGGER" as a code.
- Manuals unlocked
- Enter "IMISSMANUALS" as a code. While playing the game, press D-pad Up, Down to do a manual.
- Perfect rails
- Enter "LIKETILTINGAPLATE" as a code.
- Perfect manuals
- Enter "TIGHTROPEWALKER" as a code.
- Perfect stats
- Enter "IAMBOB" as a code.
- Extreme car crashes
- Enter "WATCHFORDOORS" as a code.
- First person view
- Enter "FIRSTPERSONJAM" as a code.
- Demon skater
- Enter "EVILCHIMNEYSWEEP" as a code.
- Giant skater
- Enter "IWANNABETALLTALL" as a code.
- Invisible skater
- Enter "NOWYOUSEEME" as a code.
- Mini skater
- Enter "DOWNTHERABBITHOLE" as a code.
- Picasso skater
- Enter "FOURLIGHTS" as a code.
- Shadow skater
- Enter "CHIMNEYSWEEP" as a code.
- Power Of The Fish mode
- Enter "TONYFISHDOWNHILLJAM" as a code.
- Big birds
- Enter "BIRDBIRDBIRDBIRD" as a code.
- Very big birds
- Enter "BIRDBIRDBIRDBIRDBIRD" as a code.
- Small pedestrians
- Enter "SHRINKTHEPEOPLE" as a code.
- High pitched voices
- Enter "HELLOHELIUM" as a code.
- Display location coordinates
- Enter "DISPLAYCOORDINATES" as a code.
- Skaters
- Get a "Gold", "Silver", or "Bronze" rank on the indicated event to unlock the corresponding character:
- Armando Gnutbagh: Unknown Skater (Tier 10)
- Crash: Crash Test (Tier 3)
- Kevin Stabb: Kevin's Challenge (Random)
- MacKenzie: MacKenzie's Challenge (Tier 2)
- Boards
- Get a "Gold", "Silver", or "Bronze" rank on the indicated event to unlock the corresponding board:
- Black Icer: Precision Shopping Slalom (Tier 7)
- Chaos: Vista Point Race (Random)
- Cruiser: Grind Time (Tier 4)
- Dark Sign: He-Man Club/Girl Power (Tier 5)
- Dispersion: Machu Picchu Top to Bottom Race (Tier 7)
- Dragon: Swiss Elimination (Tier 9)
- Goddess of Speed: The Hills Are Alive Tricks (Tier 9)
- Illuminate: Machu Pichu Top to Bottom Tricks (Tier 4)
- Kuni: Hong Kong Race (Tier 2)
- Makonga: Mall Rats (Tier 8)
- Red Rascal: San Francisco Elimination (Tier 3)
- Ripper: Del Centro Slalom (Tier 7)
- Solar: Tourist Trap (Tier 1)
- Spooky: Clearance Sale (Tier 6)
- Street Issue: Street Issue Slalom (Tier 1)
- Alternate costumes
- Get a "Gold", "Silver", or "Bronze" rank on the indicated event to unlock the corresponding alternate costume:
- Ammon's Money Suit: Edinburgh Full Tricks (Tier 3)
- Ammon's Tan Suit: Saturday Matinee (Tier 9)
- Ammon's Tommy T: Seaside Village Race (Tier 6)
- Budd's Power of Chi: Rome Elimination (Tier 6)
- Budd's The Bohemian: Catacombs Slalom (Tier 2)
- Budd's Toys for Bob: Waterfront Race (Random)
- Crash's Bombs Away: Fallen Empire Race (Tier 4)
- Crash's Brace for Impact: Out of the Woods Race (Tier 5)
- Crash's Space Monkey: Lift Off (Tier 7)
- Gunnar's Black Knight: Park It Anywhere (Tier 7)
- Gunnar's High-G Armor: Gunnar's Threads (Tier 1)
- Gunnar's Street Creds: Favela Rush (Tier 4)
- Jynx's Black Tuesday: Road to Cuzco Race (Tier 3)
- Jynx's Funeral Fun: Del Centro Race (Tier 7)
- Jynx's Graveyard Casual: Cable Car Tricks (Random)
- Kyla's Alpine Red: San Francisco Full Slalom (Tier 9)
- Kyla's Shooting Star: Cuzco Challenge Race (Tier 2)
- Kyla's Touchdown: Clear the Streets (Tier 5)
- MacKenzie's Killer Bee: High Street Slalom (Tier 6)
- MacKenzie's Spitfire Squadron: Edinburgh Full Race (Tier 4)
- MacKenzie's Street Combat: Parking Lot Shuffle (Tier 7)
- Tiffany's Baby Blue: Tourist Spot Slalom (Tier 2)
- Tiffany's Military Chic: Shopping Spree (Tier 8)
- Tiffany's Nero Style: Rome Burning (Tier 7)
- Tony's Business Camouflage: Mountain High Race (Random)
- Tony's Business Camouflage: Mountain High Race (Random)
- Tony's Downhill Jam: Hills Are Alive Race (Tier 9)
- Tony's Mariachi Loco: Out of the Woods Tricks (Random)