Quick start:
Hold Square + Up immediately before the race begins. Alternately, press X when "Go!" appears.

Bahamut class:
Begin game play in grand prix mode and continue until requested to choose between Chocobo and Behemoth class. Finish in first place in every stage to get the crown for that stage and class. Bahumut class will be unlocked after collecting all crowns for both classes (and the Final Fantasy 8 track).

Goblin:
If Goblin tries to steal your item, press Start. If done correctly, you will find that Goblin's troop is a Jack.

Audience:
On certain levels there is an audience watching the race. The basic audience you can see on the side of the road are some Marlboro, a few Bombs, and some other strange creatures from the Final Fantasy series. In the racetrack known as the "FF8 Circuit", the audience is made up of members of SeeD and Galbadia Soldiers from Final Fantasy 8.

Over the ditch with Jack:
The only way you can get through the Gingerbread level with Jack is to equip him with Dash, get him a Charge, or pick up Haste. When Jack is on the track, there is a ditch later in the course that requires enough speed for a jump, but he normally is too slow.

Miss ice spells:
On freestyle, choose Wht Mage or Drk Mage to float over ice spells.

Perfect race:
Play as Jack in versus mode. Your enemy should be Cactuar or also Jack. Equip yourself with Charge or Dash. Give your opponent anything but Dash and Charge. Select the Gingerbread level. Whenever you reach the ditch, use your special to jump over it, because you are too slow to jump over it otherwise. Your opponent will never be able to get over it because he is too slow, and you will always win.

Mirrored tracks:
Collect all crowns in Bahamut class (including the Final Fantasy 8 track) to unlock the mirror mode selection on the options screen.