EPC Lock-Up Display Enter EPC at the Codes screen.
Fifth Secret World Obtain all of the amulets and trophies, then go to the Lighthouse. You should see a board with trophies on it. Go through the board and it will amazingly turn into a space ship. You will then be transported to a space world where 4 new tracks will be available.
Super Turbo Boosts When going through a speed ring (in a plane), a speed pyramid (in a hovercraft or plane), or over a zipper (in a car, hovercraft, or grounded plane), let your finger off of the accelerator before you hit it and you will get a green boost, which is better than the normal purple. The same rule applies when using a single, double, or triple turbo balloon; let off the accelerator. Also, when the announcer says "Get Ready", depending on when you press the accelerator button, you will get a red (weak), blue (strong), or no turbo boost.
Shortcuts Fossil Canyon: This one is obvious. At the fork in the road, take a left. It's a bit shorter and safer.
Dino Domain Boss: This shortcut is on the boss of Dino Domain(the triceratops). About halfway up the mountain, after the place where you go past a large pillar on the right with two balloons, you should see some bushes on the right. Behind them is a tunnel that will almost assure that you'll win.
Frosty Village 1: In the part where you go past several large pillars, go either left or right offroad. You must make use of the three Zippers of both paths.
Frosty Village 2: You must use the hovercraft to take this shortcut without losing speed. Near the end, you'll see a large outcropping with three ledges on it on the right, surrounded by a lake. Underneath it is a tunnel. Go through it.
Snowball Valley 1: Like Fossil Canyon, take the left path at the fork. It's faster.
Snowball Valley 2: The other shortcut is not really a shortcut. Instead, you must grab one of the shield powerups before the snowball area. Use it to sail right through the snowballs and gain some ground over your snowball-dodging opponents.
Crescent Island 1: Right before the tunnel at the beginning, you'll see a path on the left. Follow it to get a magnet balloon and get ahead.
Crescent Island 2: Using the hovercraft, go left around the pirate ship to find a shorter tunnel.
Crescent Island 3: Or, you can go on the ship and go on the right path next to the tunnel. Then hop right to go through the hole.
Crescent Island 4: The last shortcut here is found after the pirate ship. On the final turn before the end, make a powerslide/hop right to go around the pillar on the right. It's a great way to win at the last second(and it contains a Silver Coin).
Whale Bay: Use the whale near the beginning to jump over the pirate's ship and get a magnet powerup and jump ahead of you foes.
Pirate's Lagoon: Near the end, use the Zipper to jump the ramp and get a Turbo powerup.
Windmill Plains: Go through the windmills at the beginning. Both of them contain a Zipper and a Magnet powerup.
Boulder Canyon: In the area after the indoor waterfall, you will see a red balloon on the left and a green one on the right, leading to the rest of the track. But grab the red one and you'll find a hidden tunnel behind it. It contains two coins and is shorter.
Greenwood Village: Near the beginning, you'll go through a village area. You should see a well. Hit the brakes as you approach it and drive over it. You should fall down to a tunnel with a Zipper in it. This is the shortcut.
Haunted Woods: At the fountain in the village area, take a right. It looks longer, but it gets you to the tunnel a bit faster(and it contains a Silver Coin).
Sherbet Island Boss/Boulder Canyon: In both of these races, you should gain some speed if you hop over the logs with the hovercraft at the right angle. Be careful, if you go at the wrong angle, you'll crash into the log and lose speed!
Wizpig Amulet To piece together the full Wizpig amulet, you must race and beat each of the four bosses twice.
Adventure 2 To play the second adventure, make your way to Space World and beat Wizpig again. You'll now have a new option called ADVENTURE 2. In this mode you have to collect platinum balloons and all the adventure tracks will be reversed.
Space World To get to Space World, which is the hidden fifth world in the game, you must get all trophies and all amulets. Then go to the sign by the lighthouse and honk at it. The lighthouse will transform into a rocket and take you into space.
TT Amulet To access the TT room in World 5, containing the second race with Wizpig, you need to get all of the TT keys in each of the four worlds. The keys are in located in Ancient Lake, Dino Domain; Snowball Valley, Snowflake Mountain; Crescent Island, Sherbet Island; and Boulder Canyon, Dragon Forest.
Key Locations Dino Domain key:
This key is located in the track called "fossile lake". When you start go straight but don't take the turn. Look staright ahead, you can see the key located on a ramp right in from of you!
Snowflake Mountain key:
This key is located in the track called "snowball valley". When you start don't go. Just turn to your left. Then take another right and you should see the Key in an alcove in the side of the mountain.
Sherbert Island key:
This key is located in the track called "crescent island". When you start take the right path and go into the water. Go and look at the side of the mountain. There should be an alcove with the key in it.
Dragon Forest key:
This key is located in the track called "boulder canyon". Get to the part of the track where you see a bell hanging from the cieling. Power up your speed burt to level 3 (get three blue balloons). The turn around and face the bell from the "wrong way" then hit the bell. The drawbride in front of you should raise. Use your level 3 speedburst and speed up the raising drawbride and get the key.
Play as Drumstick
To play as Drumstick find all of the amulets, the WizPig and the TT amulets. Once you've done this, squash a frog in the central area (place with the red spot).
Turbo Start
As in so many N64 racing games, Diddy's got a Turbo Start (like Wave Race, Mario Kart 64). Just after the high-voiced announcer says "Get Ready" and the words start to fade, press the acclereration button (A). You'll get a mighty boost. The boost is more powerful and lasts longer the later you enact it. But be careful not to start it too late or it won't work at all.
Codes
Note: To use these codes, enter them at the Cheat Menu. Then go to Code List to toggle them on or off.
FREEFORALL Fully powered-up balloons
WHODIDTHIS See credits
TEENYWEENIES Racers are about half their normal size
JUKEBOX Go to "Audio Options" menu to access the Music Test
ARNOLD Big characters
DOUBLEVISION Same players
FREEFRUIT Start with 10 Bananas
OFFROAD Off roadin' fun
TIMETOLOSE Better AI
ZAPTHEZIPPERS No more zippers
BOGUSBANANAS Bananas slow you
JOINTVENTURE Two players can play the Adventure Mode
VITAMINB Unlimited Bananas
ROCKETFUEL All Balloons are Blue
TOXICOFFENDER All Balloons are Green
OPPOSITESATTRACT All Balloons are Rainbows
BODYARMOR All Balloons are Yellow
BOMBSAWAY All Balloons are Red
BLABBERMOUTH Change Horn Sounds
NOYELLOWSTUFF No Bananas in Multiplayer Mode
Codes taken, with permission, from Cheatcity.com
Geting T.T.To get T.T. let go of the A button when you hit the zippers on timetrial, this will help you get T.T.
