Diddy Kong Racing
Magic Codes
Enter these at the magic code screen:
 All Balloons are Blue
 All Balloons are Green
All Balloons are Rainbow 
 All Balloons are Red
 All Balloons are Yellow
 Bananas Reduce Speed
 Big Characters
 Disable Bananas
 Diable Weapons
 Display Credits
 Four Wheel Drive
 Horn Cheat
 Maximum Power Up
 Music Menu
 No Limit to Bananas
 Select Same Player
Small Characters 
 Start with 10 Bananas
 Tough Computer
 Turn off Zippers
Two Player Adventure
 Ultimate AI

 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.

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.