Enter the following Magic codes:

All Balloons are Blue: ROCKETFUEL
All Balloons are Green: TOXICOFFENDER
All Balloons are Rainbow: OPPOSITESATTRACT
All Balloons are Red: BOMBSAWAY
All Balloons are Yellow: BODYARMOR
Bananas Reduce Speed: BOGUSBANANAS
Big Characters: ARNOLD
Disable Bananas: NOYELLOWSTUFF
Disable Weapons: BYEBYEBALLOONS
Display Credits: WHODIDTHIS
Four Wheel Drive: OFFROAD
Horn Cheat: BLABBERMOUTH
Maximum Power Up: FREEFORALL
Music Menu: JUKEBOX
No Limit to Bananas: VITAMINB
Select Same Player: DOUBLEVISION
Small Characters: TEENYWEENIES
Start with 10 Bananas: FREEFRUIT
Tough Computer: GOODCOMPUTER
Turn off Zippers: ZAPTHEZIPPERS
Two Player Adventure: JOINTVENTURE
Ultimate AI: TIMETOLOSE

Play as TT:
You have to beat all of the tracks in the game in Time Challenge to get him. He will then appear as a playable on the character select screen.

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 with rooster feathers on his head 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 acceleration 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.

Zipper Boost:
For a blue flame boost off the zippers, let go of the acceleration right before the zipper. This will help you win the races dramatically.

Plane Trick:
When using the plane press "R" twice to flip and hold the control stick left or right to barrel roll.

Space:
To go to Space, you must beat WizPig and get all of the Trophies and Amulets. Once you've done that, go to the sign by the lighthouse and honk at the sign near it. The lighthouse will transform into a rocket and blast you into space.