Access Cheat mode:
Enter CHEAT as a profile name. This will unlock Cheats under 'Options.' Now enter the following at the Cheats screen.

All characters:
Enter Nematode as a case-sensitive code.

All tracks:

Enter headSLAP as a case-sensitive code.

Unlimited turbo:
Enter FishFace as a case-sensitive code.

Unlimited shields:
Enter ThinkBat as a case-sensitive code.

All ships upgraded:
Enter RICEitup as a case-sensitive code.

All speed categories:
Enter zoomZOOM as a case-sensitive code.

All Easter Eggs:
Enter CHOCchoc as a case-senstive code.

Rival pilots:
Beat any game difficulty mode (expert, master, redshift, etc.) with any character to unlock their rival..

Redshift mode:
Beat Master mode with every pilot to unlock Redshift mode.

Easter Eggs:
Beat Expert mode with each rival pilot to unlock the eight Easter Eggs.

Thanks to Revolution readers Eric Wein, Lee MacPherson and Andy Washburn!