Unlock everything in quick race mode:
Enter ITSALLOVER as a name.

Unlock Dunny mode, check licenses :
Enter BADDRIVER as a name.

Todd 900 Superlite in quick race mode:
Enter TODDMCARTOR as a name.

View development team:
Enter TEAM as a name.

Extra money:
Enter GREEDYGIT as a name.

Fogarty bike in quick race mode:
Enter THEDOGSNADS as a name.